IBPS PO Prelims Model Paper 12

Since the ratio of the number of coins is 10:8:5
Let
The number of coins of 1 rupee = 10x ;the number of coins of 50 paise = 8x ;the number of coins of 25 paise = 5x
Value of 50 paise coins =

8x

2

(as there two 50 paise coins in 1 rupee)
Value of 25 paise coins =

5x

4

(as there four 25 paise coins in 1 rupee)
Now, 10x+4x+

5x

4

=976
x=64
So, the number of 25 paise coins = 5 × 64 = 320