After allowing a discount of 11.11%, a trader still makes a gain of 14.28%. At how many percentage above the cost price does he mark on his goods? Choose the correct choice from the following answers.
A) 28.56%	B) 35%	C) 22.22%	D) None of these	E) Cannot be determined
Explanation :   Let Y be the Selling price.   So, x + (14.28x / 100) = y - (11.11y / 100).   Or y = 1.2856x   Or y = 128.56x/100   Or y = x + 28.56x/100   Hence, 28.56% above the cost price he marks his goods.   28.56%nswer : 28.56%
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After allowing a discount of 11.11%, a trader still makes a gain of 14.28%. At how many percentage above the cost price does he mark on his goods?