Question

A rectangular container A which is $100$ cm by $75$ cm by $25$ cm, is full of water. Some of this water is used to fill completely another container B measuring $50$ cm by $50$ by $25$ cm. The volume of water (in litres) left over in A, is

• A. $25$
• B. $50$
• C. $125$
• D. $150$

Answer 1

The correct option is C $125$

Given that, a rectangular container which is $100cm$ by $75cm$ by $25cm$, is full of water.

Hence volume of container A is $=100\times 75\times 125=187500c{m}^3$

Some of this water is used to fill completely another container B measuring $50cm$ by $50$ by $25cm$. (Given)

So, volume of container B$=50\times 50\times 25=62500c{m}^3$

The volume of water (in litres) left over in A, is$187500-62500=125000c{m}^3$

Water in liters$=\frac{125000}{1000}=125$ litter.

Hence, this is the answer.