Question

How many times will we use the following container to transfer 50 L 500 mL of liquid from Tank 1 to Tank 2?

• A. 200
• B. 202
• C. 204
• D. 206

Answer 1

The correct option is B 202

Liquid to be transferred = 50 L 500 mL
Capacity of container = 2 dL 50 mL

Convert the numbers into a single common unit, that is, milliliter (mL).

The conversion table is as shown:


So, 1 L = 1,000 mL
∴ 50 L = 50 × 1000 mL = 50,000 mL

So, the volume of liquid to be transferred = 50,000 mL + 500 mL
= 50,500 mL

Similarly,
1 dL = 100 mL


∴ 2 dL = 2 × 100 mL = 200 mL

So, the capacity of container
= 200 mL + 50 mL = 250 mL

∴ Number of times the container is used to transfer the liquids = $\frac{50,500}{250}$
$$\begin{array}{c}202\\ 25050500\\ -\underset{–}{500}2\\ 50\\ -\underset{–}{0}\\ 500\\ -\underset{–}{500}\\ 0\end{array}$$∴ Number of times the container is used to transfer the liquid = 202