Question

If the cost price of 10 laptops is equal to the selling price of 7 laptops, what is the gain or loss percentage is?

• A. 51% gain
• B. 42.86% gain
• C. 35% loss
• D. 42.86% loss

Answer 1

Answer:

D. 42.86% loss

Let C.P of each laptop be Rs. 1 C.P of 7 laptops = Rs. 7 C.P of 10 laptops = Rs. 10 S.P of 7 laptops = Rs. 10 Gain = Rs. (10 – 7) = Rs. 3 Gain % = 3/7 × 100 = 300/7 = 42.86%