A man borrowed some money from a privat organisation at 5% simple interest per annum. He lended this money to another person at 10% compound interest per annum, and made a profit of ₹ 26,410 in 4 years. The man borrowed?
Pure mathematics is the world's best game. It is more absorbing than chess, more of a gamble than poker, and lasts longer than Monopoly. It's free. It can be played anywhere - Archimedes did it in a bathtub.
Richard J. Trudeau, Dots and Lines
But mathematics is the sister, as well as the servant, of the arts and is touched with the same madness and genius.