Question

If the selling price of an article is 4/5 of its cost price find the loss percent

Answer 1

Lets assume CP as Rs.300/- (I took multiple of 3 to make calculation easy since the denominator is 3)

So SP will be 300 x (4/3) = Rs.400/-

Profit = SP-CP= Rs.100/-

ie if SP is 4/3=(1.3333) then CP will be 1 and profit will be 1.33333–1=0.3333

1/3 = 0.3333