Question

the selling orice of 10 book is equal to the cost price of 12 books. find the profit percent.
​

Answer 1

Step-by-step explanation:

Let the CP of one book be Rs. x. So,

CP of 16 books =Rs. 16x

According to the question,

SP of 12 books =Rs. 16x

Therefore,

SP of one book =Rs.

12

16x

=Rs.

3

4x

Therefore,

Gain%=

x

(

3

4x

−x)

×100=

3x

x

×100=33

3

1

%