By selling a watch for Rs. 720/- a man loses 20% at what price should he sell it to gain 10%?	Choose the most appropriate option: A) Rs.810/- B) Rs.880/- C) Rs.900/- D) Rs.990/- E) None of these
Explanation:   80 % ------&gt; 720 (80 * 9 = 720)   110 % ------&gt; 880 (110 * 9 = 990)   = Rs.990/-   Answer: Option Rs.990/-
<result>D</result>
By selling a watch for Rs. 720/- a man loses 20% at what price should he sell it to gain 10%?