A hat vendor bought hats at Rs 5 per 3 hats. He sold them at Rs 10 per 4 hats. What was his profit percentage? Choose the correct choice from the following choices:
A) 50	B) 88	C) 77	D) 88	E) 11
Selling price per hat = 10/4   Profit percentage = (S.P – C.P / C.P) x 100   Substituting the above SP and CP we get 50%.   50nswer:50
<result>A</result>
A hat vendor bought hats at Rs 5 per 3 hats. He sold them at Rs 10 per 4 hats. What was his profit percentage?