Question

A bag contains Rs . 90 in coins of denominations of 50 paise, 25 paise and 10 paise. If coins of 50 paise, 25 paise and 10 paise are in the ratio 2:3:5, then the number of 25 paise coins in the
bag is ​?

Answer 1

50 paise is half of Rupee,25 paise is one fourth of Rupee ans 10 paise is one tenth of a rupee.

It is given 50 paise, 25 paise and 10 paise are in the ratio 2:3:5.

Ratio of values of 50 paise, 25  paise and 10 paise coins=

$\frac{2}{2}:\frac{3}{4}:\frac{5}{10}$

=4:3:2.

Sum of ratio=4+3+2=9.

We need to find number of 25 paise coins in the bag.Total amount of denomination = Rs.90.

Number of 25 paise in bag= $\frac{3}{9}x90=30.$

The 25 paise coins are worth Rs 30.

Number of 25 paise coins=30x4=120.