# The Gain or Loss Percentage will be:

Cost price of 100 books is equal to the selling price of 60 books. The gain or loss percentage will be:

- 66%
- 265/4 %
- 200/3 %
- 267/4 %

**Answer: (3) 200/3%**

**Explanation:-
**The cost price of 100 books = 1

Then, the cost price of 1 book = 1/100

Selling price of 60 books = 1

Then, the selling price of 1 book = 1/60

Then, profit of 1 book = 1/60 – 1/100

= (5- 3)/300

= 2/300 = 1/150

Then, the profit percent = (1/150) x 100/(1/100)

= 100 x 100/150

= 10,000/150

= 200/3 %

Then, the gain percentage will be 200/3%.

Hence, the answer is (3) 200/3%.