A charity box holds ₹1, ₹2 and ₹5 coins. The total VALUES of the three kinds of coin are in the ratio $3 : 4 : 5$, and the box holds ₹360 in all. How many ₹2 coins are in the box?

Explanation

1. 01

   Split the value: ₹360 in the ratio $3 : 4 : 5$ gives ₹90, ₹120 and ₹150.

2. 02

   Number of coins = value ÷ face value: $90 \div 1 = 90$, $120 \div 2 = 60$, $150 \div 5 = 30$.

3. 03

   So there are 60 coins of ₹2.