In my pocket there are Rs 50 consisting of only the denominations of Rs 5 and Rs 10 Thus there are t...........

Quantitative Aptitude (CDS) Average

In my pocket, there are Rs.50 consisting of only the denominations of Rs.5 and Rs.10. Thus there are total of 8 coins in my pocket. The no. of coins of the denomination of Rs.5 is?

Explanation:

Average price of a coin = 50/8 = Rs.6.25
So the ratio of the number of Rs.5 coins to the number of Rs.10 coins is
= 10 – 6.25 / 6.25 – 5
= 3.75 / 1.25
= 3/1
Therefore, the number of coins of the denominations of Rs.5 is 6.