How many 10 paise coins add up to one rupee?
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?
Arvind has Piggybank. 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 money in the bank is Rs 35. How many one-rupee and fifty paise coins are there in the bank, respectively?