Question

A purse has only two-rupee and five-rupee coins. The sum of the coins is 36 and
the total value of the coins is 84. Find the number of five-rupee coins.​

Answer 1

Answer:

let the number of five rupees coins be 'x

the number of two rupees coins = ( 36 - x )

as per the condition .

5x + 2( 36 - x ) = 84

5x + 72 - 2x = 84

3x + 72 = 84

3x = 84 - 72

3x = 12

x = 4

HENCE, the number of 5rupees coins is 4