Q. Rohit has some 50 paise coins, some Rs.2 coins, some Rs.1 coins and some Rs.5 coins. The value of all the coins is Rs.50. Number of Rs.2 coins is 5 more than the Rs.5 coins. 50 paise coins are double in number than Rs.1 coin. Value of 50 paise coins and Rs.1 coins is Rs.26. How many Rs.2 coins does he have?