The C.P of 15 books is equal to the S.P of 18 books. Find his gain% or loss%?
Pick one.
A) 16 2/3% loss B) 22 2/3% loss C) 88 2/3% loss D) 66 2/3% loss E) 22 2/5% loss
15 CP = 18 SP   18 --- 3 CP loss   100 --- ? =&gt; 16 2/3% loss   16 2/3% lossnswer: 16 2/3% loss
<result>A</result>
The C.P of 15 books is equal to the S.P of 18 books. Find his gain% or loss%?