Question

How many 10 rupee and 2 rupee coins ( both should be equal in number) rs 108.00

Answer 1

Answer

Let x be the no of coin

Rs.10=10x

Rs 2=2x

10x + 2x =108

12x=108

X=108/12

X=9

There should be 9 coins of each

Answer 2

Let the number of coins be X .
so
10x +2x = 108
12X = 108
x = 9

10X = 10* 9 =90
2x =2* 9 = 18
10 rupee coin = 90/10=9
2 rupee coin = 18/2=9