Question

In a box, the total number of Rs. 2 coins and Rs. 5 coins is 20. If the total coins amount to Rs. 76, find the number of coins of each denomination.

Answer 1

Let the number of Rs. 2 coins and Rs. 5 coins be x and y respectively.

$x+y=20$

$2x+5y=76$

Solving these equations, we get,

$x=8$ and $y=12$

Therefore, number of Rs. 2 coins = 8 and number of Rs. 5 coins = 12.