Question

apple is costlier than orange by 25 percent. by what percent orange is cheaper than apple

Answer 1

Let the Cost Price and Selling Price be CP and SP respectively

Now according to the problem, the man gains a cost price of 20 oranges upon selling 80, which means -

Profit upon selling 80 oranges = Total cost price of 20 oranges
=> 80 x SP - 80 x CP = 20 x CP
=> 4 x SP - 4 x CP = CP
=> 4 x SP = 5 x CP
=> SP = 5/4 CP

Now, Profit %age = (Profit/Total Cost Price) x 100 %
= [80 (SP - CP) / 80 CP ]x 100 %
= (5/4 CP - CP) / CP ]x 100 %
= 100/4%
= 25%