Question

how many person can be accommodated in a dining hall of dimensions 20 m 50 M 4.5 M assuming that each person requires 5 metre cube of air​

Answer 1

V = 20×50×4.5

$= 4500 {m}^{3}$

no. of persons = 4500/ 5

=900

Answer 2

$\sf{ Volume\: of \:cuboid}={I×b×h}$

$\sf{\implies (20×16×4.5)m}$

$\sf{\implies 1440m}$

$\sf{No.\: of\: persons} = \frac{1400}{5}$

$\sf{\implies 288 persons}$