Question

50 students sit in the class room. Each student requires 9 metre square on floor and 180 metre square in space. If the length of the room is 25 metre , find the breadth and height of room

Answer 1

each student requires 9m² of floor 
and given the no. of students is 50
So the total area of the room is 9m²X50=450m²
Given the length of the room is 25m
so the Breadth is =450/25=18m

each student requires 108m³ of space 
so total volume of the room is 108X50=5400m³
we know that : Volume=Area X h
                      so⇒5400=450Xh
                          ⇒h=5400/450=  12m