Question

Find the value of following :
$15\%$ of $2$ minutes [2 Marks]

Answer 1

Given,
$15\%$ of $2$ minute.
We know that, $1$ min $=60$ sec.
So, $2$ min $=120$ sec (0.5 marks)

$15\%$ of $2$ minutes $=15\%$ of $120$ sec

$=\frac{15}{100}\times 120$ (0.5 marks)

$=15\times \frac{12}{10}$

$=\frac{180}{10}$ (0.5 marks)

$=18$ sec $=0.3$ min

Hence, $15\%$ of $2$ min is $0.3$ min or $18$ sec. (0.5 marks)