A man cheats while buying as well as while selling. While buying he takes 11% more than what he pays for and while selling he gives 20% less than what he claims to. Find the profit percent, if he sells at 9.09% below the cost price of the claimed weight.	Choose the correct choice.
A) 19.81%  B) 20%  C) 37.5%  D) 25%  E) 42.86%
There is a one step calculation method too. It requires more thought but is faster.   The man takes 11% more than what he pays for. So if he claims to take 100 pounds, he pays $100 but he actually takes 111 pounds for which he will take from the customer $111. Hence, in effect, there is a 11% mark up.   While selling, he sells 30% less. This means, he claims to sell 100 pounds and gets $100 but actually sells only 70 pounds and should have got only $70 for it. So this is again a mark up of $30 on $70.   But he also sells at 9.09% less i.e. gives a discount of 1/11.   (1 + m1%)(1 + m2%)(1 - d%) = (1 + p%)   11/10 * 10/7 * 10/11 = (1 + p%)   profit % = 42.86%42.86%
<result>E</result>
A man cheats while buying as well as while selling. While buying he takes 11% more than what he pays for and while selling he gives 20% less than what he claims to. Find the profit percent, if he sells at 9.09% below the cost price of the claimed weight.