Question

How many five-rupee coins will weigh the same as 360 one-rupee coins?
The weight of each one-rupee coin is 6 g and the weight of each five-rupee coin is 9 g.

Answer 1

Weight of a one-rupee coin = 6 g
Weight of 360 one-rupee coin = 6 $\times$360 = 2160 g

Weight of a five-rupee coin = 9 g
Total number of five-rupee coin should weigh 2160 g.
So, Number of five-rupee coins required = 2160 $÷$ 9
= 240