Question 755586
let us assume that there is only one, one rupee coin, which implies there are 3 50paise coins, 5 25 paise coins and 7 10paise coins. The total value adds upto 1(1)+3(5)+5(25)+7(10)=4.45. This is the value of one set of coins for the given ratio. Now we divide the total amount with the amount of one set of coins, 2225/4.45=500. It is given that the the coins are in the ratio 1:3:5:7 which implies that there are 500 rupee coins, 1500 50paise coins, 2500 25paise coins and 3500 10paise coins.