question_answer

A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for RS. 960 at a loss of 4%. His total gain or loss per cent is?

A) 5% loss                   

B) 5gain

C) 62% gain                      

D) None of these

Correct Answer: B

Solution :

Let the cost price of a transistor Hence                                             Let the cost price of another transistor