A chair is bought for Rs.200/- and sold at Rs.310/- find gain or loss percentage	Pick one.
A) 15% loss B) 20% gain C) 25% gain D) 30% gain E) 55% gain
Formula = (Selling price ~ Cost price)/Cost price * 100   = (310- 200)/200= 55% gain   55% gain
<result>E</result>
A chair is bought for Rs.200/- and sold at Rs.310/- find gain or loss percentage