Mr. Saxena bought some pens at Rs. 150 a dozen. He sold them for Rs. 15 each. What is his profit/loss per cent?

Correct option is A

Given:

Mr. Saxena bought pens at Rs. 150 per dozen. 1 pen = $$\frac{150}{12}$$= 12.5 Rs.​

He sold each pen for Rs. 15.

Formula used:

Profit percentage =$$\frac{Profit} {\text{Cost Price}}$$​ $$\times$$​ 100

Solution:

Profit = S.P.− C.P. = 15 − 12.5 = Rs. 2.5

Profit% = $$\frac{2.5}{12.5} \times 100$$ = 20%

​Hence, Mr. Saxena made a profit of 20%.