Question

If the cost of a dozen soaps is Rs 90, what will be the cost of 15 such soaps?​

Answer 1

Step-by-step explanation:

by unitary method

cost of 12 pcs. is Rs.90

cost of 1 pc. is 90/12

= Rs. 7.5

cost of 15 such soaps is 15×7.5

= Rs. 112.5 ans..

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