Question

On decreasing the price of a fan by 40%, its sales increases by 50%. What will be the percentage increase or decrease in its revenue?

15% increase

15% decrease

10% decrease

10% increase​

Answer 1

Step-by-step explanation:

Let the price of a fan be 100rs and 100 no.s of fans are sold.

Total selling price =100×100=10000rs

Now the price is decreased by 40%,new price=100-40×100/100=60rs

Sale increases by 50% , therefore total no.s of fan sole =100+50×100/100=150

Total Sp=150×60=9000rs

% decrease=(10000-9000)×100/10000

=100000/10000=10% ans