The balance of a trader weighs 10% less than it should. Still the trader marks up his goods to get an overall profit of 20%. What is the mark up on the cost price?
Choose the correct choice from the following options.
A) 40%	B) 8%	C) 25%	D) 16.66%	E) 9%
Original cost before weight adjustment: X   Cost after 90% weight adjustment: 9/10 X   20% profit on 9/10X: (120/100)(9/10)(X) or 108X/100   Mark up on original cost of X: (108X/100)/X-1 = 8/100   ANSWER:8%
<result>B</result>
The balance of a trader weighs 10% less than it should. Still the trader marks up his goods to get an overall profit of 20%. What is the mark up on the cost price?