Question

madhus Piggy Bank contain 5 rupee and 10 rupee coins the number of 5 rupee coin is double the number of 10 rupee coin if total value of the coin in a piggy bank is rupees 250 find the number of coin each denomination​

Answer 1

Answer:

let number of 10 rupees coin be x

so number of 5 rupees coin be 2x

A/Q

10x + 10 x = 250

20x = 250

x = 250/20

=14.5

Answer 2

Given that,

Madhus Piggy Bank contain 5 rupee and 10 rupee coins. The number of 5 rupee coin is double the number of 10 rupee coin.

The total value of the coin the piggy bank is Rs 250.

To find,

The number of coin each denomination​.

Solution,

Let the number of 10 rupee coin is x. So, ATQ, the number of 5 rupee coins will be 2x.

Money for 10 rupee coin is 10 x and for 5 rupee coin is 10 x.

Also,

$10x+10x = 250\\\\20x=250\\\\x=12.5$

So, the number of 10 rupee coin is 10 and for 5 rupee coin it is 20.