### I sold two watches for Rs. 300 each, one at loss of 20% and other at the profit of 20%. What is the percentage of loss (-) or profit (+) that resulted from the transaction?

A. (+)4 B. (-)1 C. (+)1 D. (-)4 Answer: Option D

### Solution(By Apex Team)

In such cases, always loss occurs. It can be calculated by this formula, $\begin{array}{l}=\frac{\text{ (loss or gain percentage) }^2}{100}=4\\ i.e\ 4\%\ \text{of loss}\end{array}$

## Related Questions on Profit and Loss

A. 45 : 56
B. 45 : 51
C. 47 : 56
D. 47 : 51

A. Rs. 2600
B. Rs. 2700
C. Rs. 2800
D. Rs. 3000

### A sells an article to B at a profit of 10% B sells the article back to A at a loss of 10%. In this transaction:

A. A neither losses nor gains
B. A makes a profit of 11%
C. A makes a profit of 20%
D. B loses 20%