Question

the area of the four walls of the room is 16 meter square the breadth and height of the room are 10 metre and 4 metre respectively find the length of the room

Answer 1

Given for the floor of a rectangular room,
Area = 16㎡
breadth, l = 10m
height, h = 4m
Let the length of the rectangula floor be X.

Since,
Volume volume of room = (l × b) × h
⇒Vol. of room = Area of room × height
⇒l × b × h = 16㎡ x h
⇒l x b = 16㎡
⇒X × 10m = 16㎡
⇒Therefore,

⇒X = 16㎡/10m
∴X = 1.6m. ANS.