Question

A man sells two pipes at Rs. 12 each. He gains 20% on one and loses 20% on
the other. In the whole transaction there is​

Answer 1

a man sells two pipes at rupees= 12Rs.

he gains= 20%

loses=20%

in whole transaction there=0%

Answer 2

Answer:

The  percentage change in transaction is loss of 4%

Step-by-step explanation:

Given as :

The selling price of the pipe for 20% gain = Rs 12

The selling price of the pipe for 20% loss = Rs 12

Let The percentage change in transaction = z%

According to question

The gain percentage = x = 20%

The loss percentage = y = 20%

So, The percentage change = gain percentage - loss percentage - $\dfrac{gain percentage \times loss percentage}{100}$

I.e z = x% - y% - $\dfrac{x y }{100}$

Or, z = 20 - 20 - $\dfrac{20\times 20}{100}$

Or, z = 0 - 4

Or, z = - 4

So, The percentage change = z = 4% loss

Hence, The  percentage change in transaction is loss of 4% Answer