Question

The cost of 3 dolls if 2 such dolls cost rs.120 is ...... ans pls
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Answer 1

Rs. 180

Explanation:

This is a proportion problem.

We are told that 2 dolls cost Rs. 120

Thus;

Cost of 1 doll = 120/2 = Rs. 60 per doll

Then;

Cost of 3 dolls = Rs. 60 * 3 = Rs. 180