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A bag contains equal number of 5 rupee, 10 rupee and 2 rupee coins. If the total amount is Rs. 646, then how many coins of each denomination are there? 

A bag contains equal number of 5 rupee, 10 rupee and 2 rupee coins. If the total amount is Rs. 646, then how many coins of each denomination are there?  Correct Answer 38

Given:

A bag contains equal number of 5 rupee, 10 rupee and 2 rupee coins

The total amount = Rs. 646

Calculation:

Let the equal number of coin be x, x, x

Amount of coin = 5x, 10x, 2x

According to the question:

5x + 10x + 2x = 646

⇒ 17x = 646

⇒ x = 38

∴ There are 38 coins of each denomination.

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