How many 50 paise coins will sum up to ₹ 10?
80 coins add up to give a sum total of Rs. 6.40, where the coins are of either 10 paise or 5 paise. How many coins are of 5 paise?
Manu needs ₹7.50 to buy an eraser. He already has a few ₹2 coins and a few 50 paise coins with him. How many ₹2 coins and 50 paise coins will Manu need to buy the eraser such that he uses the least number of 50 paise coins?
In how many ways can two 10-paise coins, two 20-paise coins, three 25-paise coins and one 50-paise coin be distributed among 8 children so that each child gets only one coin?