Question

A bag contains 1 rupee coins 50 paise and 25 paise coins in ratio of 5:6:7. If total amount is rs. 390. Find the numbers of coins of each kind

Answer 1

Ratio of value of the coins 5/1 : 6/2 : 7/4 = 20:12:7

Value of 1 rupee coins = Rs.(780*20/39) = Rs.400

Value of 50-paise coins = Rs.(780*12/39) = Rs.240

Value of 20-paise coins = Rs.(780*7/39) = Rs.140

Therefore

Number of 1 Rupee coins = 400

Number of 50-paise coins = 240*2 = 480

Number of 25-paise coins = 140*4 = 560