Question

I have some 5-rupee coins & 2-rupee coins. The number of 2-rupee coins is twice the number of 5-rupee coins. The total money I have is rupee 108.So how many 5-rupee coins do I have?and how many 2-rupee coin

Answer 1

Let no. of 5 r. coins= x
then, no. of 2 r. coins= 2x

2(2x) + 5x = 108
9x=108
x=12

No. of 5 r. coins=12
2 r. coins = 24