Question

Area of the four walls of a room is 660sq.m and its length is twice the breadth. If the height of the room is 11m, then the area (in sq.m.) of its floor is -----


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Answer 1

Answer:

200 sq.m.

Step-by-step explanation:

let breadth= b

length= l= 2b given by

hight= h =11

according to the problem,

(l×11×2)+(b×11×2)=660

(2×b×11×2)+(b×11×2)=660

22×b×(2+1)=660

66×b=660

b=10

Then the area of floor is l×b =2×b×b=2×10×10=200 sq.m

which is required.

Answer 2

Answer:

200 sq.m.

hope it helps you