(3) The ratio of the number of coinsis 10 : 8 : 5. Let the number of coins of 1 rupee= 10x, the number of coins of 50paise = 8x, the number of coins of25 paise = 5x Value of 50 paise coins =8
x
2
(asthere are two 50 paise coins in 1rupee)Value of 25 paise coins = 54x (asthere are four 25 paise coins in 1rupee) Now, 10x+4x+5
x
4
=976 x = 64 So, the number of 25 paise coins =5 × 64 = 320