A retailer bought a dozen shirts for ₹3600. He sold each shirt at ₹350. What is his total profit or loss percentage?

Correct option is B

Given
Cost Price (CP) of 12 shirts = ₹ 3600
Selling Price (SP) of 1 shirt = ₹ 350

Formula Used
Total SP = SP of 1 unit $$\times$$​ Total units
Profit = Total SP - Total CP
Profit Percentage = $$\frac{\text{Profit}}{\text{Total CP}} \times 100$$​​
Solution
Calculate the Total Selling Price of 12 shirts:
Total SP = $$12 \times 350 = 4200$$​​
Since SP > CP, there is a profit.
Profit = 4200 - 3600 = 600
Calculate the Profit Percentage:
Profit % =  $$\frac{600}{3600} \times 100$$​​

Profit %  $$= \frac{1}{6} \times 100 = 16.666...\%$$​​
Rounding off, it is 16.67% profit.

Final Answer
So the correct answer is (b)