Question

A man sells an article at a profit of 25%if he had bought it 20% less and sold it for Rs 10.50 less,he would have gained 30% find the cost price of the article.

Answer 1

Let the C.P be Rs x 

1st S.P=125% of x =125x/100=5x/4; 2nd S.P=80% of x=80x/100=4x/5 

2nd S.P=130% of 4x/5=(130/100*4x/5)=26x/25  

=>5x/4-26x/25=10.50

x=(10.50*100)/21=50 

hence C.P=Rs.50