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?
Choose the correct choice:
A) 15 B) 67 C) 18 D) 19 E) 12
90 * 10/60= 
<gadget id="calculator">90 * 10/60</gadget>
<output>15</output>
15 kmph   15nswer: 15
<result>A</result>
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?