Question

The dimensions of a hall are $40$ m, $25$ m and $20$ m. If each person requires $200$ cubic metre, then the number of persons who can be accomodated in the hall are ?

• A. $120$
• B. $150$
• C. $140$
• D. $100$

Answer 1

The correct option is D $100$

The formula for volume of cuboid is $length\ast breadth\ast height$

Dimensions given are $40m,24mand20m$

$\therefore Volumeofthehall=40\ast 25\ast 20$

$=20000cubicmeter$

One person requires $200$ cubic meter.

Number of people who can accommodate $20000$ cubic meter$=\frac{20000}{200}$

$=100people$