Question

A tradesman sold an article at a loss of 20%.if the selling price has been increased by Rs.100,there would have been a gain of 5%.what was the cost price of the article?

Answer 1

Let C.P be Rs x. then (105% of x)-(80 % of x)=100 or 25% of x=100 

x/4=100 or x=400 

So,C.P =Rs 400