Question

Using a pump, Mr. Paul takes 40 minutes to fill a tank with 1,600 liters of water.
In 10 minutes, he can fill liters of water.

• A. 200
• B. 400
• C. 600
• D. 800

Answer 1

The correct option is B 400

$\text{Amount of water filled in 40 minutes}$
$\text{= 1,600 liters}$

$\text{Water filled in 1 minute = 1,600}÷40$
$\text{= 40 L}$

$\text{In 1 minute, 40 L of water is filled.}$
$\text{In 10 minutes, water filled}$
$\text{= 10}\times \text{40 L}$
$\text{400 L}$

$\text{Hence, 400 L of water is}$ $\text{filled in10 minutes.}$