Question

If 15 litres oil is stored in 1-litre bottles up to $\frac{3}{4}$th level, then how many bottles are needed?

• A. 20

Answer 1

The correct option is A 20
Total quantity of oil = 15 litres
Since each 1-litre bottle is filled $\frac{3}{4}$th
$\therefore$ Amount of oil stored in 1 bottle = $\frac{3}{4}\times 1$ = $\frac{3}{4}$ litre

Number of bottles = $15÷\frac{3}{4}$
= $15\times \frac{4}{3}$
= $5\times 4$
= 20 bottles are needed