Question

The dimensions of a hall are $50$ m, $25$ m and $9$ m. If each person required $150$ cubic m, then the number of persons who can be accommodated in the hall are:

• A. $60$
• B. $65$
• C. $70$
• D. $75$

Answer 1

The correct option is D $75$

Length of hall $=50$ m
Width of hall $=25$ m
Height of hall $=9$ m
Space occupied by one person $=150$ cubic metre
Number of persons $=$ $\frac{\text{Volume of hall}}{\text{Sapce taken by a person}}$ $=$ $\frac{50\times 25\times 9}{150}$ $=75$ persons