A ball is bought for Rs.400 and sold at a gain of 20% find its selling price  Choose the correct choice.
A) Rs.400/- B) Rs.480/- C) Rs.500/- D) Rs.520/- E) Rs.540/-
100 % ------&gt; 400 (100 * 4 = 400)   120 % ------&gt; 480 (120 * 4 = 480)   Selling price = Rs.480/-   Rs.480/-
<result>B</result>
A ball is bought for Rs.400 and sold at a gain of 20% find its selling price