Shortcut Tricks on simple interest
1. If a sum of money becomes n times in T yr at simple interest, then formula for calculating rate of interest will be given as R = {100 (n- 1) / T} %
2. If a sum of money at a certain rate of interest becomes n times in T yr and m times in t yr, then formula for t will be given as t = [( m - 1)/(n - 1)]...
