Give a quick stream of consciousness before answering the following question. A man buys two articles for Rs.1980 each and he gains 10% on the first and loses 10% on the next. Find his total gain or loss percent?
Options:
(A) 9
(B) 8
(C) 7
(D) 6
(E) 5
(30*30)/100 = 9%loss
The answer: (A).