Question

$\frac{1}{4}th$ part of a tank is full of water. When $30$ litres of water is taken out the tank becomes empty
What is the capacity of the tank ?

• A. $30$
• B. $60$
• C. $120$
• D. $90$

Answer 1

The correct option is C $120$

Let the total capacity be $x$ litres.

Then according to the question,

$\frac{x}{4}=30$ litres

$x=30\times 4$$=120$litres

Therefore capacity of the tank is $120$litres.