5000 was divided into two parts such a way that when first part was invested at 3 % and the second at 5 % , the whole annual interest from both the investments is rs . 144 , how much was put at 3 % ?
"( x * 3 * 1 ) / 100 + [ ( 5000 - x ) * 5 * 1 ] / 100 = 144 3 x / 100 + ( 25000 – 5 x ) / 100 = 144 = > x = 10600 answer : a"
divide(subtract(multiply(divide(5, const_100), 5000), 144), subtract(divide(5, const_100), divide(3, const_100)))