A cycle is bought for Rs.450 and sold for Rs.520, find the gain percent?  Choose the correct choice from the following:  A) 18  B) 14  C) 20  D) 15  E) 15.55
450 ---- 70   100 ---- ? =&gt; 15.55%   Answer: 15.55
<result>E</result>
A cycle is bought for Rs.450 and sold for Rs.520, find the gain percent?