Question

A shopkeeper marks an with a price which is 40 percent above the cost price and allows of 20 percent on it, what is his gain percent

Answer 1

let cp be x
mp = x +40%of x
6x/5
discount = 20 %
sp = 6x/5×(100-20)/100
24x /25x
loss% = x /25×1/x×100
4%