The profit earned by selling an article for $ 832 is equal to the loss incurred when the same article is sold for $ 448. What should be the sale price for making 30% profit? Select.
A) $480  B) $450  C) $960  D) $832  E) $660
Let C.P. = $ x.   Then, 832 - x = x - 448   2x = 1280 =&gt; x = 640   Required S.P. = 130% of $ 640 = $ 832.   $832
<result>D</result>
The profit earned by selling an article for $ 832 is equal to the loss incurred when the same article is sold for $ 448. What should be the sale price for making 30% profit?