Question

A 200 litre barrel needs to be filled using a 2 litre bottle. How many times should the bottle be used to fill the barrel to about 80%?

• A. 85 times
• B. 90 times
• C. 80 times
• D. 60 times

Answer 1

The correct option is C 80 times

Volume of barrel to be filled is 80% of 200 litre.

Volume of barrel filled = 200 $\times$$\frac{80}{100}$ = 160 litres

Number of times bottle used = $\frac{\text{Volume of barrel filled}}{\text{Volume of bottle}}$ = $\frac{160}{2}$ = 80

$\therefore$ 80 times the bottle is used to fill the required quantity of barrel.