a man gains 50 % by selling an article for a certain price . if he sells it at double the price , the percentage of profit will be .
explanation : let the c . p . = x , then s . p . = ( 150 / 100 ) x = 3 x / 2 new s . p . = 2 ( 3 x / 2 ) = 3 x / 1 profit = 3 x / 1 - x = 3 x / 1 profit % = ( profit / c . p . ) * 100 = > ( 3 x / 1 ) * ( 1 / x ) * 100 = 300 % option b
add(multiply(subtract(multiply(add(const_1, divide(50, const_100)), const_2), const_1), const_100), const_100)