A sum of Rs. 350 made up of 110 coins, which are of either Re.1 or Re.5 denomination. How many coins are of Re.1?	Choose the most appropriate option:  A) 60  B) 70  C) 80  D) 90  E) 100
1x+5y= 350   x+y=110   solving the two quations we get x= 50, y= 60 coins.   60NSWER:60
<result>A</result>
A sum of Rs. 350 made up of 110 coins, which are of either Re.1 or Re.5 denomination. How many coins are of Re.1?