Question

The original price of a bulb is $\$15$ and the shopkeeper allows a discount of 20% on it. Find the selling price of the bulb.

• A. $\$10$
• B. $\$5$
• C. $\$12$
• D. $\$3$

Answer 1

The correct option is C $\$12$

Original price of bulb $=\$15$
Percentage discount on bulb $=20\%$

Discount amount $=20\%\text{of}\$15$
$=\frac{20}{100}\times \$15$
$=\frac{20}{20\times 5}\times \$15$
$=\frac{1}{5}\times \$15$
$=\$3$

Selling price = Original price - Discount amount
$=\$15-\$3$
$=\$12$

Hence shopkeeper sold the bulb for $12.