Discussion Forum



1)

100 persons can sleep in a room 25m by 9.8m.If each person requires 12.25 cu.m of air. Find the height of the room.


A) 6 m

B) 5 m

C) 4 m

D) 10 m

Answer:

Option B

Explanation:

Let the height of the room be h m.

Then, volume of the room = $25\times 9.8\times h m^{3}$

=$245hm^{3}$

Given, $245h=100\times 12.25$

h=$\frac{1225}{245}$

=5 m