1.

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

Answer» 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%


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