a shopkeeper buys mangoes at the rate of 5 a rupee and sells them at 2 a rupee . find his net profit or loss percent ?
"the total number of mangoes bought by the shopkeeper be 10 . if he buys 5 a rupee , his cp = 2 he selling at 2 a rupee , his sp = 5 profit = sp - cp = 5 - 2 = 3 profit percent = 3 / 2 * 100 = 150 % answer : d"
divide(multiply(2, const_100), 5)