the present worth of rs . 169 due in 2 years at 4 % per annum compound interest is
"solution present worth = rs . [ 169 / ( 1 + 4 / 100 ) ² ] = rs . ( 169 x 25 / 26 x 25 / 26 ) = rs . 156.25 answer c"
divide(169, power(add(divide(4, const_100), const_1), 2))