# The C.P of 15 books is equal to the S.P of 18 books. Find the gain% or loss% ?

The C.P of 15 books is equal to the S.P of 18 books. Find the gain% or loss% ?

A. 16 2/3 % loss

B. 100/3 % loss

C. 50/3 % loss

D. 100/3 % loss

**Answer : **A. 16 2/3 % loss

## Explanation:

Let Cost Price per book = 1

Cost of 15 books = 15

15 is obtained by selling 18 books

So Selling Price per book = 15 / 18

CP - SP = Loss

= 1 − 15 / 18

= 1 / 6

Percentage = 1 / 6 ∗ 100

= 16 2/3 % Loss