The C.P of 15 books is equal to the S.P of 22 books. Find his gain% or loss%? Options
A) 16 2/3%
B) 31 9/11%
C) 16 2/5%
D) 16 2/1%
E) 16 1/3%
15 CP = 22 SP   22 --- 7 CP loss   100 --- ? =&gt; 31 9/11% loss.Answer: 31 9/11%
<result>B</result>
The C.P of 15 books is equal to the S.P of 22 books. Find his gain% or loss%?