Question

$\text{A tank has a capacity of 8,200 mL. If}\frac{1}{2}\text{L of}$ $\text{water is already filled in the tank, determine}$ $\text{the amount of water required to fill it completely.}$

• A. 6,200 mL
• B. 5,900 mL
• C. 8,100 mL
• D. 7,700 mL

Answer 1

The correct option is D 7,700 mL

$\text{Capacity of the tank}$ $\text{= 8,200 mL}$

$\text{Water available in the tank =}\frac{1}{2}\text{L}$

$\text{Let's convert}$ $\text{L to mL.}$

$\text{We know that,}$
$\text{1 L =}$ $\text{1,000 mL}$


So,
$\frac{1}{2}\text{L =}\frac{1}{2}\times 1,000mL=500$

$\text{Hence, out of the 8,200 mL capacity}$ $\text{of the tank, 500 mL is already filled.}$

$\text{Now, we have to find the remaining}$ $\text{amount of water to be filled in}$ $\text{the tank.}$

$\text{Amount of water to be filled}$ $\text{= Total capacity – Water available}$


$\text{Therefore, 7,700 mL of water is required}$ $\text{to fill the tank.}$