Rahul purchased 7 DVDs each of which costs Rs.17. He gave a five hundred rupee note to the shopkeeper. The amount returned to him is divisible by?
A. 3
B. 7
C. 9
D. 11
There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.
Richard van der Merwe
It is easier to square the circle than to get round a mathematician.