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If the cost of five rolls of camera film is 500, then the cost of eight such camera rolls isMarks:1
If the cost of 1 kg packet of tea is 96, then the cost of 6 kg tea packet isMarks:1
The method in which first we find the value of one unit and then the value of required number of units is known asMarks:1
Explanation:Let us understand unitary method with the help of one example.
Let the cost of 5 pens is Rs 60.
So, the cost of one such pen = 60/5 = Rs. 12.
Therefore, the cost of 2 such pens = Rs 24.
In unitary method, we first find out the value of theMarks:1
In unitary method, we first find out the value of unit quantity.
Cost of a dozen rakhis is Rs. 36.The amount Shikha will pay if she wants to buy 7 rakhis isMarks:1
Explanation:Cost of 12 rakhis = Rs. 36.00. Cost of 1 rakhi = 36/12 = Rs.3.00. Cost of 7 rakhis = Rs 3 x 7 = Rs.21.00.