Question

A shopkeeper purchased $300$ bulbs of Rs. $10$ each. $10$ bulbs were fused and thrown away. The remaining were sold at Rs. $12$ each. Find gain or loss $\%$.

• A. Loss $=16\%$
• B. Gain $=16\%$
• C. Loss $=12\%$
• D. Gain $=12\%$

Answer 1

The correct option is B Gain $=16\%$

Cost price of $300$ bulbs $=300\times 10=3000$ Rs

$10$ bulbs are fused and thrown away

$\Rightarrow$ Selling price of remaining $290$ bulbs $=290\times 12=3480$ Rs

Profit $=3480-3000=480$ Rs

Gain $\%=\frac{480}{3000}\times 100$

$\Rightarrow$ Gain $\%=16\%$