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### Question

A retailer makes a gain of 20% when he sells the first item for Rs. 480. But he suffers a loss of 5% when he sells the second item for Rs. 570. What is his combined loss or gain?

**A**

5.

**B**

6.

**C**

7.

**D**

4.

**Soln.**

**Ans: a**

The cost of the first item is 480 × $100/{100 + 20}$ which is Rs. 400. The cost of the second item is 570 × $100/{100 - 5}$ which is Rs. 600. The combined cost is 400 + 600 = Rs. 1000. The combined sale is 480 + 570 = Rs. 1050. The profit percent is 100 × ${1050 - 1000}/1000$, which is 5%.