A person borrows Rs. 22500 for 3 years at 4.5% p.a. simple interest. He immediately lends it to another person at 7.25 p.a for 3 years. Find his gain in the transaction per year.
If I am given a formula and I am ignorant of its meaning, it cannot teach me anything, but if I already know it what does the formula teach me?
Saint Augustine of Hippo
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.