In how many ways 3 friends Ram, Rajat and Rupesh having 6 one rupee coins, 7 one rupee coins, 8 one rupee coins respectively donate 10 rupee coin collectively?
Ram has ₹27 in the form of fifty paise and twenty five paise coins. He has twice as many twenty five paise coins as he has fifty paise coins. What is the total number of coins of each kinds?