A tradesman sold an article at a loss of 25%. If the selling price had been increased by $500, there would have been a gain of 15%. What was the cost price of the article ?	Choose the correct choice from the following
A) $1000  B) $1200  C) $1120  D) $1350  E) $1250
Let C.P. be $x   Then 125% of x - 85% of x = 500   40% of x = 500   2x/5 = 500   x = $1250   Answer is $1250
<result>E</result>
A tradesman sold an article at a loss of 25%. If the selling price had been increased by $500, there would have been a gain of 15%. What was the cost price of the article ?