Question

If $\frac{1}{3}$ of a number is 10, then what is 1.25 times of that number? [2 Marks]

Answer 1

Let the number be x.

According to the question,
$\frac{1}{3}ofx=10\Rightarrow \frac{1}{3}\times x=10$

On multiplying both sides by 3, we get,

$\frac{1}{3}\times x\times 3=10\times 3\Rightarrow x=30$
[1 Mark]

Hence, 1.25 times of 30 $=\frac{125}{100}\times 30=\frac{3750}{100}=37.5$
[1 Mark]