Question

A sport shoe costing $\$150$ is sold on $30\%$ discount. Find the discount amount.
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Answer 1

Original price of the shoe $=\$150$
Percentage discount $=30\%$

Discount amount $=30\%\text{of}\$150$
$=\frac{30}{100}\times \$150$
$=\frac{3\times 10}{10\times 10}\times \$150$
$=\frac{3}{10}\times \$150$
$=\frac{3\times \$150}{10}$
$=3\times \$15$
$=\$45$

Hence, discount amount on the shoe is $\$45.$