A coin box, which contains only ₹ 10 coins and ₹ 20 coins, has a total amount of ₹ 2100. The ratio of the number of ₹ 10 coins to the number of ₹ 20 coins is 3 : 2. How many ₹ 20 coins are there?
A30
B90
C60
D45
A coin box, which contains only ₹ 10 coins and ₹ 20 coins, has a total amount of ₹ 2100. The ratio of the number of ₹ 10 coins to the number of ₹ 20 coins is 3 : 2. How many ₹ 20 coins are there?
A30
B90
C60
D45