Question

Aravind has a kiddy bank. It is full of one-rupee and fifty paise coins. It contains 3 times as many fifty paise coins as one rupee coins. The total amount of the money in the bank is 35. How many coins of each kind are there in the bank?​

Answer 1

let one- rupee coins be = X

fifty praise coins = 3X

Total amount of the money in the bank = Rs.35

amount of one rupee coins = X × 1 = Rs. X

amount of fifty paise ( 1/2 rupee) coins = 3X × 1/2 = Rs. 3X/2

X + 3X/2 = 35

2X + 3X = 35

2

5X = 35 × 2

X = 35 × 2

5

X = 14

3X = 3 × 14 = 42

There are 14 one rupee coins and 42 fifty paise coins in the kiddy bank