Question

the cost price of 16 notebook is equal to the selling price of 12 notebooks find the gain percent

Answer 1

$<b>Answer:$

Let the Cost Price of one notebook be Rs 1.

Therefore , cost Price of 16 notebooks = Rs 16

And Selling Price of 12 notebooks = Rs 16

or selling Price of one notebook = 16/12

therefore , Selling Price of 16 notebooks

= 16/12 × 16

Gain = selling Price of 16 Notebooks - Cost Price of 16 Notebooks

         =16 × 16/12 - 16
         =16 × 16 - 16 × 12 /12
         =16 (16 - 12)/12
         =16 × 4/12
         =16/3
hence gain % = Gain / Cost Price of 16 Notebooks × 100
                     = (16/3)/16 × 100

                     =16/3 × 1/16 × 100

                    = 100/3

               Gain % = 33.33%

Hope This helps You!!

Thank You!!

Answer 2

Let x be the cost price of 1 notebook.

Find the selling price of 1 notebook:

12 notebooks = 16x

1 notebook = 16x ÷ 12 = 4/3 x

Find the gain percentage:

Gain = 4/3 x  - x = 1/3 x

Gain percentage = (1/3 x ÷ x) x 100

Gain percentage = 33.3%

Answer: The gain is 33.3%