Question

The area of four walls of a room is 156 m square and the breadth and height of the room are 8m and 6m respectively. Find the length of room

Answer 1

Answer:

L.S.A. Of room=156m

L.S.A. Of room=2(l+b)h

156m=2(L+8)6

156m=12(L+8)

156/12=(L+8)

L+8=13

Length=13-8=5

Answer 2

area of room=l×b×h
156 = l×8×6
l =156/48
l =3.25