An article is bought for Rs.500 and sold for Rs.700, find the gain percent?	Choose the correct choice from the following:
A) 33 1/7% B) 33 1/6% C) 33 1/3% D) 38 1/3% E) 40%
500 ---- 200   100 ---- ? =&gt; 40%   Answer:40%
<result>E</result>
An article is bought for Rs.500 and sold for Rs.700, find the gain percent?