Question

A tank contains 3,500 milliliters of water. If its full capacity is 0.005 kiloliters, what percentage of the tank is empty?

• A. 25%
• B. 30%
• C. 35%
• D. 40%

Answer 1

Answer:

B. 30%

Convert everything to the same unit.

Step 1: Convert capacity to milliliters

1 kiloliter = 1,000,000 milliliters

So,
$0.005 \text{ kL} = 0.005 \times 1{,}000{,}000 = 5000 \text{ mL}$

Step 2: Find empty quantity

Total capacity = 5000 mL
Water present = 3500 mL

$\text{Empty} = 5000 - 3500 = 1500 \text{ mL}$

Step 3: Percentage empty

$\frac{1500}{5000} \times 100 = 30\%$

Final Answer: 30% of the tank is empty