Question

In a bag there was a sum of rs. 110 with coins of denominations 1 rupee, 50 paise and 5 rupee. The coins were in the ratio of 5 : 2 : 1 respectively. How many 1 rupee coins were there in the bag?

Answer 1

5x+2x+x=110
6x=110
x=18.333
5*18.333=91.65
2*18.333=36.66
1*18.66=18.333