Profit and Loss - General Aptitude

Q1:

By selling a product with 20% profit, how much profit was earned?
I.  The difference between cost and selling price is Rs. 40.
 II.  The selling price is 120 percent of the cost price.

A I alone sufficient while II alone not sufficient to answer

B II alone sufficient while I alone not sufficient to answer

C Either I or II alone sufficient to answer

D Both I and II are not sufficient to answer

E Both I and II are necessary to answer

ANS:A - I alone sufficient while II alone not sufficient to answer

Gain = 20% I. Profit = (S.P.) - (C.P.) = Rs. 40. Thus, I give the answer. But, II does not give the answer.  Correct answer is (A).