a person buys an article at rs . 800 . at what price should he sell the article so as to make a profit of 35 % ?
"cost price = rs . 800 profit = 35 % of 800 = rs . 280 selling price = cost price + profit = 800 + 280 = 1080 answer : e"
add(800, multiply(800, divide(35, const_100)))