Question

A vessel is fully filled with a special liquid. Four litres of liquid is drawn out of this vessel and is replaced with water. If the ratio of the special liquid to the water becomes 1: 2, then what is the capacity of the vessel?

• A. 6 litres
• B. 10 litres
• C. 12 litres
• D. 14 litres

Answer 1

Answer: (A)

6 litres

Answer 2

The correct option is (A): 6 litres
Explanation:
Let capacity of vessel be $x$ litres
Now, special liquid in the vessel = $(x-4)$ litres and water = 4 litres
Ratio=$\frac{x-4}{4}=\frac{1}{2}$
$x − 4 = 2$
$x=6\space litres$