every year an amount increases by 1 / 8 th of itself . how much will it be after two years if its present value is rs . 51200 ?
51200 * 9 / 8 * 9 / 8 = 64800 . answer : e
add(add(51200, multiply(divide(1, 8), 51200)), multiply(divide(1, 8), add(51200, multiply(divide(1, 8), 51200))))