NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities (EX 8.2) Exercise 8.2

The Central Board of Secondary Education CBSE is one of India’s most prestigious and highly regarded educational boards.There are many schools that are affiliated with the CBSE board, and they are present everywhere in India. CBSE is a premier board when itcomes to imparting knowledge to students. CBSE has a very distinct curriculum and pattern that it asks its students to follow. The pattern is highly objective and the questions that are frequent in the exams are objective as well. An objective study pattern includes questions which are primarily short answer based. Such a curriculum demands that students  go deep into the fundamental ideas that are being discussed in this chapter. Students must have a knack for new ideas and try to implement them in their lives. Students must have an in-depth understanding of the syllabus and its constituent chapters. CBSE designs its curriculum in a specific manner that facilitates students’ development of their analytical and cognitive abilities.. These traits in students are highly valued by the CBSE. Students cannot just memorise information from the chapter and get good grades. If students desire to get a good grade, then they must have a thorough understanding of the chapter.

Students must extensively study the chapters in their syllabus, and after they have made some discernible progress with the syllabus, they must regularly revise the chapters that they have already done. When students revisit chapters that they solved previously, all of the concepts they learned are remembered and refreshed.The ideas come back to the students easily, and they can see how in every subject all the chapters are related.. CBSE aims at providing a very cohesive narrative for the students to follow. CBSE discourages students from blindly and mindlessly memorising the information from the chapters.Teachers who are a part of the Extramarks team, have years of experience teaching students in the CBSE system. They are the same teachers who had the leading contribution in the compiling the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. Teachers have seen students struggle and they have also observed ways in which students have dealt with the issues. These teachers have shared all these tricks in this article, and therefore students must pay attention to them and also use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English when they are studying. Class 7 is a challenging standard for student, and therefore the fundamental ideas taught in this class must remain very solidly in the minds of the students. Exercise 8.2 is a particularly important exercise as well, and thus, students must never take the Math Class 7th Exercise 8.2 casually.

CBSE is widely known among students for its vast syllabus.  This is one of the reasons Extramarks teachers were excited to see the NCERT Solutions for Class 7 Maths, Chapter 8, Exercise 8.2, in Hindi and English.When a large syllabus is combined with an objective studying pattern, it creates and formulates a paradigm that ensures students learn from the syllabus.CBSE wants its students to go deep into the fundamental ideas of the chapter. It is only through this practise that students can have the desire to do well in their exams.The questions that are frequently asked in the exams are primarily short, answer-based questions. Students must never confuse them with being easy. Students must have a lucid understanding of the topics to be able to answer the questions. Often, ideas that are related to the chapters in the syllabus are merged. It is understandable that the CBSE paradigm can be tough, but if students change their routine a bit and tweak some aspects of their habits, then they will not be facing the issues. Teachers who have compiled and curated the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English are highly qualified, and they have relevant experience with teaching CBSE kids. They have very carefully curated the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. Teachers have seen students greatly benefit from the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. Teachers have encouraged multiple students to use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English and they have reassured students that there is nothing to fear about the CBSE syllabus. With a little consistency and dedication, students can easily face their fears.

The National Council for Educational Research and Training (NCERT) is an organisation which was established in  1961 by the Indian Government. NCERT was established so that a country like India can finally have an autonomous organisation which can can make firm decisions on complicated matters that directly pertain to the education of the country and its youth. NCERT is made uppeople who have all the relevant qualifications and experience to make decisions like this. NCERT assists the Central government as well as the State governments to legislate on matters that would affect the academic prowess of the country. NCERT and CBSE walk hand in hand, so any decisions that NCERT makes, are followed by the CBSE and all the schools affiliated with it. NCERT and CBSE share an extremely symbiotic relationship. NCERT puts out their own sets of rules and regulations, which the students must follow. These rules were put in place to make the educational process simpler, and therefore, if a student fails to abide by the rules, they might lose marks, which would lead to bad grades. NCERT even curates their syllabus based on all the current educational trends worldwide. This is done to ensure that students are provided with well-rounded ideas. These NCERT textbooks follow all the prescribed rules and regulations, and they entirely stick to the syllabus. When students use the NCERT textbook as their primary textbook, they become very familiar with the text, and not just that, they also learn about various other non-academic information which is required for a perfect score. Therefore, the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English is a crucial tool for students. The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English completely adhere to the NCERT rules as well as the syllabus. The solutions are provided by highly esteemed professionals who have been working tirelessly in this field for years. Teachers encourage students to use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English because regular use of this has shown great improvement.

CBSE has a provision for students to appear and give exams in two languages. The two languages are the two official languages in India – English and Hindi. There is a huge demographic of people who live in India, and they all speak Hindi. When Extramarks released the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, it became a very important resource for students. Usually, there is a severe dearth of reliable NCERT resources in Hindi. Therefore, the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English are one of the best tools that many students have. Students can learn about the distinct vocabulary of any subject through multiple resources like – television, the internet, books, magazines, advertisements, etc., although it is really difficult for students to have access to the same vocabulary in Hindi. Therefore, when students use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, they learn new skills. Sometimes it has been seen that this extra knowledge helps students later in their careers. Many students who used the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English and have knowledge of two languages can choose to study them in the language with which they are most comfortable.The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, have become almost a staple whenever students are using any NCERT textbooks. Exercise 8.2 in Class 7th Math and Exercise 8.2 in Extramarks solutions are available to students.Thus,  Class 7 Maths Chapter 8 Exercise 8.2 is a challenging exercise for any Class 7 CBSE student, and they must take it seriously.

NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities (EX 8.2) Exercise 8.2

The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English provide the solutions for Chapter 8 of the Class 7 CBSE curriculum. In this chapter, students are taught how to understand and compare the different quantities.These are fundamental ideas that students must fully comprehend because the advanced ideas that will be covered in the student’s syllabus will be heavily reliant on them. Even these ideas will come back in other subjects like Physics, Chemistry, Economics etc. Therefore, the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, helps students not only with Mathematics but with other subjects as well.

Mathematics is one subject that students find intimidating. The reason behind this is that students cannot master the subject the night before the exam. Students who are willing to score well must practise regularly and be very dedicated. Mathematics is also an important subject for a CBSE student in Class 7.Mathematics and its functions can be observed anywhere in the corporeal world. Since the impact of this subject is severe and vast, CBSE places an extreme emphasis on it. All the basic ideas must be learned by a student to their core so that there is no area in the discourse in which there is doubt on the student’s end. The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, therefore, taken it upon itself to provide the solutions to every unsolved question from Chapter 8 Exercise 8.2 in the NCERT textbook. The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English follow the same chronology that is provided in the NCERT textbook and this is done because students must have the optimum ease of access while they are using the NCERT solutions. The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English are curated by the top professionals at Extramarks and therefore the solutions can be assured to be perfect. As a result, students are always under expert and experienced supervision while studying with the NCERT Solutions for Class 7 Maths, Chapter 8, Exercise 8.2 in Hindi and English.

Access NCERT Solutions for Class 7 Maths Chapter 8 – Comparing Quantities

This article provides the NCERT Solutions for Class 7 Maths Chapter 8 Exercise 8.2 for students to access through either the Extramarks website or mobile application. One of the primary uses of the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English as seen by teachers is when students are studying and learning from a new chapter. Students should use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English to clarify their doubts. Students must read through the chapter’s introduction to become acquainted with the concepts. The introduction is the place where all the basic information related to the chapter is given. Students then must refer to the solved examples in the NCERT textbooks and look for formulas and their derivations that might be used in the exercise. Is only after following this routine that students must start solving the exercise. Since it is the first time, students need to be patient with the use of the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. After facing problems several times, students must use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. NCERT does not just provide students with academic information; it also provides them with other information as well. The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English helps students properly manage their time.

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One of the other best times to use NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English is when students are ready to revise the chapters that they have solved earlier. When students have made significant progress with the syllabus and they are ready to come back to the chapters that they had solved long back. One of the best tools, when students have decided to revise, is the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. Although, students must be even more patient and brisk with the use of the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. Since students have already solved the problems, this time around students must use their cognitive abilities to analyse the data and find the solution to the question. Although it is natural to find hurdles this time around and they must take their doubts and mistakes very seriously this time. Teachers have seen a pattern where students do not pay much attention to their doubts after they get the solution from the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English. The doubts that arise and reoccur point to a larger scenario in which students can analyse their performance and determine their own strengths and weaknesses.Students can use the NCERT Solutions for Class 7 Maths, Chapter 8, Exercise 8.2 in Hindi and English to plan their exam strategies.The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English has evolved into a one-stop shop for any CBSE Class 7 students experiencing difficulties with this exercise.While revising, students must pay close attention to the errors they make while completing Class 7th Maths Chapter 8 Exercise 8.2.Another instance when students have used the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English is right before their final exams. Students become extremely overwhelmed as a result of the anticipation and waiting.In such moments, even if students have prepared something with great depth, they often score less. In situations like these, students need a little push, and therefore, the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, provide the necessary help. In situations like this, it is often observed that students who have made significant progress and studied hard for their exams often score lower. Upon close observation, it is found that in situations like this, it is not the result of the student’s lack of practise but rather his or her lower self-confidence. Therefore, when students use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English while they are practising the problems and get to clarify their doubts without any other external help, it helps them develop their confidence. When students start to use the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, they observe a significant change and a decrease in their tendency to make mistakes. NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities Exercise 8.2

The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, provide detailed and well-explained solutions to every unsolved question from the NCERT textbook. The NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English, are written in a very lucid manner. the solutions in the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English are well structured and written in an extremely meticulous way so that students from all different kinds of backgrounds can understand them. Every step of the problem-solving process is done beautifully. There are no omitted steps and every step is explained. All the reasonings in the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English are direct and well placed. The motive of the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English is to make sure that the students are never left unattended. Teachers have always emphasised the importance of great and efficient time management. Therefore, when students are studying by themselves, the NCERT solutions have come to be one of the most useful resources for them. It was with patience and dedication that the NCERT Solutions Class 7 Maths Chapter 8 Exercise 8.2 in Hindi and English was compiled, and therefore the teachers at Extramarks always implore students to use them to their utmost extent.

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Extramarks have various resources, and in this article, students can access the solutions for Maths Class 7 Chapter 8 Exercise 8.2. 

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Click on the link below to access the Class 7 Maths Chapter 8 Exercise 8.2 Solutions.

Q.1

Convert the given fractional numbers to per cents.(a)19 b54 c340 d27

Ans.

(a) 1 8 = 1 8 × 100 100 = 1 8 ×100%=12.5% ( b ) 5 4 = 5 4 × 100 100 = 5 4 ×100%=125% ( c ) 3 40 = 3 40 × 100 100 = 3 40 ×100%=7.5% ( d ) 2 7 = 2 7 × 100 100 = 2 7 ×100%=28 4 7 %

Q.2 Convert the given decimal fractions to percents.
a. 0.65 b. 2.1 c. 0.02 d. 12.35

Ans.

( a ) 0.65 =0.65×100%= 65×100 100 %=65% ( b ) 2.1 =2.1×100%= 21×100 10 %=210% ( c ) 0.02 =0.02×100%= 2×100 100 %=2% ( d ) 12.35 =12.35×100%= 1235×100 100 %=1235% MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKf MBHbqeduuDJXwAKbYu51MyVXgaruWqVvNCPvMCG4uz3bqefqvATv2C G4uz3bIuV1wyUbqeeuuDJXwAKbsr4rNCHbGeaGqiVz0xg9vqqrpepC 0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yq aqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabe qaamaaeaqbaaGceaqabeaadaqadaqaaiaabggaaiaawIcacaGLPaaa caqGGaGaaGimaiaac6cacaqG2aGaaeynaaqaaiabg2da9iaaicdaca GGUaGaaGOnaiaaiwdacqGHxdaTcaaIXaGaaGimaiaaicdacaGGLaGa eyypa0ZaaSaaaeaacaaI2aGaaGynaiabgEna0kaaigdacaaIWaGaaG imaaqaaiaaigdacaaIWaGaaGimaaaacaGGLaGaeyypa0JaaGOnaiaa iwdacaGGLaaabaWaaeWaaeaacaqGIbaacaGLOaGaayzkaaGaaeiiai aabkdacaGGUaGaaeymaaqaaiabg2da9iaaikdacaGGUaGaaGymaiab gEna0kaaigdacaaIWaGaaGimaiaacwcacqGH9aqpdaWcaaqaaiaaik dacaaIXaGaey41aqRaaGymaiaaicdacaaIWaaabaGaaGymaiaaicda aaGaaiyjaiabg2da9iaaikdacaaIXaGaaGimaiaacwcaaeaadaqada qaaiaabogaaiaawIcacaGLPaaacaqGGaGaaGimaiaac6cacaaIWaGa aeOmaaqaaiabg2da9iaaicdacaGGUaGaaGimaiaaikdacqGHxdaTca aIXaGaaGimaiaaicdacaGGLaGaeyypa0ZaaSaaaeaacaaIYaGaey41 aqRaaGymaiaaicdacaaIWaaabaGaaGymaiaaicdacaaIWaaaaiaacw cacqGH9aqpcaaIYaGaaiyjaaqaamaabmaabaGaaeizaaGaayjkaiaa wMcaaiaabccacaqGXaGaaeOmaiaac6cacaqGZaGaaeynaaqaaiabg2 da9iaaigdacaaIYaGaaiOlaiaaiodacaaI1aGaey41aqRaaGymaiaa icdacaaIWaGaaiyjaiabg2da9maalaaabaGaaGymaiaaikdacaaIZa GaaGynaiabgEna0kaaigdacaaIWaGaaGimaaqaaiaaigdacaaIWaGa aGimaaaacaGGLaGaeyypa0JaaGymaiaaikdacaaIZaGaaGynaiaacw caaaaa@AD33@

Q.3 Estimate what part of the figures is coloured and hence find the percent which is coloured.

Ans.

(i) From the figure, we observe that 1 part out of 4 is shaded, so its 1 4 . 1 4 × 100 100 = 1 4 ×100%=25% (ii) From the figure, we observe that 3 part out of 5 is shaded, so its 3 5 . 3 5 × 100 100 = 3 5 ×100%=60% (iii) From the figure, we observe that 3 part out of 8 is shaded, so its 3 8 . 3 8 × 100 100 = 3 8 ×100%=37.5% MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKf MBHbqeduuDJXwAKbYu51MyVXgaruWqVvNCPvMCG4uz3bqefqvATv2C G4uz3bIuV1wyUbqeeuuDJXwAKbsr4rNCHbGeaGqiVz0xg9vqqrpepC 0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yq aqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabe qaamaaeaqbaaGceaqabeaacaqGOaGaaeyAaiaabMcacaqGGaaabaGa aeOraiaabkhacaqGVbGaaeyBaiaabccacaqG0bGaaeiAaiaabwgaca qGGaGaaeOzaiaabMgacaqGNbGaaeyDaiaabkhacaqGLbGaaeilaiaa bccacaqG3bGaaeyzaiaabccacaqGVbGaaeOyaiaabohacaqGLbGaae OCaiaabAhacaqGLbGaaeiiaiaabshacaqGObGaaeyyaiaabshacaqG GaGaaeymaiaabccacaqGWbGaaeyyaiaabkhacaqG0bGaaeiiaiaab+ gacaqG1bGaaeiDaiaabccacaqGVbGaaeOzaiaabccacaqG0aGaaeii aiaabMgacaqGZbGaaeiiaiaabohacaqGObGaaeyyaiaabsgacaqGLb GaaeizaiaabYcaaeaacaqGZbGaae4BaiaabccacaqGPbGaaeiDaiaa bohacaqGGaWaaSaaaeaacaaIXaaabaGaaGinaaaacaGGUaaabaWaaS aaaeaacaaIXaaabaGaaGinaaaacqGHxdaTdaWcaaqaaiaaigdacaaI WaGaaGimaaqaaiaaigdacaaIWaGaaGimaaaacqGH9aqpdaWcaaqaai aaigdaaeaacaaI0aaaaiabgEna0kaaigdacaaIWaGaaGimaiaacwca cqGH9aqpcaaIYaGaaGynaiaacwcaaeaacaqGOaGaaeyAaiaabMgaca qGPaGaaeiiaaqaaiaabAeacaqGYbGaae4Baiaab2gacaqGGaGaaeiD aiaabIgacaqGLbGaaeiiaiaabAgacaqGPbGaae4zaiaabwhacaqGYb GaaeyzaiaabYcacaqGGaGaae4DaiaabwgacaqGGaGaae4Baiaabkga caqGZbGaaeyzaiaabkhacaqG2bGaaeyzaiaabccacaqG0bGaaeiAai aabggacaqG0bGaaeiiaiaabodacaqGGaGaaeiCaiaabggacaqGYbGa aeiDaiaabccacaqGVbGaaeyDaiaabshacaqGGaGaae4BaiaabAgaca qGGaGaaeynaiaabccacaqGPbGaae4CaiaabccacaqGZbGaaeiAaiaa bggacaqGKbGaaeyzaiaabsgacaqGSaaabaGaae4Caiaab+gacaqGGa GaaeyAaiaabshacaqGZbGaaeiiamaalaaabaGaaG4maaqaaiaaiwda aaGaaiOlaaqaamaalaaabaGaaG4maaqaaiaaiwdaaaGaey41aq7aaS aaaeaacaaIXaGaaGimaiaaicdaaeaacaaIXaGaaGimaiaaicdaaaGa eyypa0ZaaSaaaeaacaaIZaaabaGaaGynaaaacqGHxdaTcaaIXaGaaG imaiaaicdacaGGLaGaeyypa0JaaGOnaiaaicdacaGGLaaabaGaaeik aiaabMgacaqGPbGaaeyAaiaabMcacaaMe8oabaGaaeOraiaabkhaca qGVbGaaeyBaiaabccacaqG0bGaaeiAaiaabwgacaqGGaGaaeOzaiaa bMgacaqGNbGaaeyDaiaabkhacaqGLbGaaeilaiaabccacaqG3bGaae yzaiaabccacaqGVbGaaeOyaiaabohacaqGLbGaaeOCaiaabAhacaqG LbGaaeiiaiaabshacaqGObGaaeyyaiaabshacaqGGaGaae4maiaabc cacaqGWbGaaeyyaiaabkhacaqG0bGaaeiiaiaab+gacaqG1bGaaeiD aiaabccacaqGVbGaaeOzaiaabccacaqG4aGaaeiiaiaabMgacaqGZb GaaeiiaiaabohacaqGObGaaeyyaiaabsgacaqGLbGaaeizaiaabYca aeaacaqGZbGaae4BaiaabccacaqGPbGaaeiDaiaabohacaqGGaWaaS aaaeaacaaIZaaabaGaaGioaaaacaGGUaaabaWaaSaaaeaacaaIZaaa baGaaGioaaaacqGHxdaTdaWcaaqaaiaaigdacaaIWaGaaGimaaqaai aaigdacaaIWaGaaGimaaaacqGH9aqpdaWcaaqaaiaaiodaaeaacaaI 4aaaaiabgEna0kaaigdacaaIWaGaaGimaiaacwcacqGH9aqpcaaIZa GaaG4naiaac6cacaaI1aGaaiyjaaaaaa@3382@

Q.4

Find:a 15% of 250          b 1% of 1 hourc 20% of Rs 2500         d 75% of 1 k

Ans.

( a ) 15% of 250 = 15 100 ×250= 75 2 =37.5 ( b ) 1% of 1 hour 1 hour=60 minutes. So, 1% of 1 hour = 1 100 ×60= 6 10 = 3 5 ( c ) 20% of Rs 2500 = 20 100 ×2500=20×25=500 ( d ) 75% of 1 kg 1 kg=1000 g. So, 75% of 1 kg = 75 100 ×1000=75×10=750

Q.5

Find the whole quantity if a 5% of it is 600. b 12% of it is 1080.c 40% of it is 500 km. d 70% of it is 14 minutes 8% of it is 40 litre

Ans.

( a ) 5% of it is 600 is same as 5% of x is 600. 5 100 ×x=600 x= 600×100 5 =12000 ( b ) 12% of it is 1080 is same as 12% of x is 1080. 12 100 ×x=1080 x= 1080×100 12 =9000 ( c ) 40% of it is 500 km is same as 40% of x is 500km. 40 100 ×x=500 x= 500×100 40 =1250 ( d ) 70% of it is 14 minutes is same as 70% of x is 14minutes 70 100 ×x=14 x= 14×100 70 =20 ( e ) 8% of it is 40 litres is same as 8% of x is 40litres 8 100 ×x=40 x= 40×100 8 =500

Q.6

Convert given per cents to decimal fractions and also to fractions in simplest forms: a 25% b 150% c 20% d 5%

Ans.

( a ) 25% = 25 100 = 1 4 =0.25 ( b ) 150% = 150 100 = 15 10 = 3 2 =1.5 ( c ) 20% = 20 100 = 2 10 = 1 5 =0.2 ( d ) 5% = 5 100 = 1 20 =0.05

Q.7

In a city, 30% are females, 40% are males and remaining are children. What percent are children?

Ans.

Children=( 100( 30+40 ) )% =( 10070 )% =30%

Q.8

Out of 15,000 voters in a constituency, 60% voted. Find the percentage of voters who did not vote. Can you now find how many actually did not vote?

Ans.

Percentage of voters who voted =60% Percentage of voters who did not vote=100%-60% =40% Number of voters who did not vote=40% of 15,000 = 40 100 ×15000 =6000 MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbwvMCKf MBHbqeduuDJXwAKbYu51MyVXgaruWqVvNCPvMCG4uz3bqefqvATv2C G4uz3bIuV1wyUbqeeuuDJXwAKbsr4rNCHbGeaGqiVz0xg9vqqrpepC 0xbbL8F4rqqrFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yq aqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabe qaamaaeaqbaaGceaqabeaacaqGqbGaaeyzaiaabkhacaqGJbGaaeyz aiaab6gacaqG0bGaaeyyaiaabEgacaqGLbGaaeiiaiaab+gacaqGMb GaaeiiaiaabAhacaqGVbGaaeiDaiaabwgacaqGYbGaae4Caiaabcca caqG3bGaaeiAaiaab+gacaqGGaGaaeODaiaab+gacaqG0bGaaeyzai aabsgacaWLjaGaaGjbVlaaysW7caaMe8UaaGjbVlabg2da9iaaiAda caaIWaGaaiyjaiaaxMaaaeaacaqGqbGaaeyzaiaabkhacaqGJbGaae yzaiaab6gacaqG0bGaaeyyaiaabEgacaqGLbGaaeiiaiaab+gacaqG MbGaaeiiaiaabAhacaqGVbGaaeiDaiaabwgacaqGYbGaae4Caiaabc cacaqG3bGaaeiAaiaab+gacaqGGaGaaeizaiaabMgacaqGKbGaaeii aiaab6gacaqGVbGaaeiDaiaabccacaqG2bGaae4BaiaabshacaqGLb GaaGjbVlabg2da9iaabgdacaqGWaGaaeimaiaabwcacaqGTaGaaeOn aiaabcdacaqGLaaabaGaaCzcaiaaxMaacaWLjaGaaCzcaiaaxMaaca WLjaGaaCzcaiaaxMaacaaMe8UaaGjbVlaaysW7cqGH9aqpcaqG0aGa aeimaiaabwcaaeaacaqGobGaaeyDaiaab2gacaqGIbGaaeyzaiaabk hacaqGGaGaae4BaiaabAgacaqGGaGaaeODaiaab+gacaqG0bGaaeyz aiaabkhacaqGZbGaaeiiaiaabEhacaqGObGaae4BaiaabccacaqGKb GaaeyAaiaabsgacaqGGaGaaeOBaiaab+gacaqG0bGaaeiiaiaabAha caqGVbGaaeiDaiaabwgacqGH9aqpcaqG0aGaaeimaiaabwcacaqGGa Gaae4BaiaabAgacaqGGaGaaeymaiaabwdacaqGSaGaaeimaiaabcda caqGWaaabaGaaCzcaiaaxMaacaWLjaGaaCzcaiaaxMaacaWLjaGaaC zcaiaaysW7caaMe8UaaGjbVlaaysW7cqGH9aqpdaWcaaqaaiaaisda caaIWaaabaGaaGymaiaaicdacaaIWaaaaiabgEna0kaaigdacaaI1a GaaGimaiaaicdacaaIWaaabaGaaCzcaiaaxMaacaWLjaGaaCzcaiaa xMaacaWLjaGaaCzcaiaaysW7caaMe8UaaGjbVlaaysW7cqGH9aqpca aI2aGaaGimaiaaicdacaaIWaaaaaa@E379@

Q.9

Meeta saves 400 from her salary. If this is 10% of her salary. What is her salay?

Ans.

Let her salary be x. Then according to the question, we have 10% of x= 400 10 100 ×x=400 x= 400×100 10 =4000 Therefore Meeta’s salary is ₹ 4000

Q.10

A local cricket team played 20 matches in one season. It won 25% of them. How many matches did they win?

Ans.

Since team played 20 matches, So, number of matches won=25% of 20 = 25 100 ×20 = 500 100 =5 So, number they won 5 matchces

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