The area of the four walls in a room is 120 m sq. The length is twice the breadth. If the height of the room is 4 m, Find the area of the floor
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Step-by-step explanation:
area of four walls= 120 sq. m
length= 2x
breath= x
height= 4m
also, area= 2(l+b)×h
120 sq.m=2×( 2x+x)×4m
120÷2=3x×4m
60m= 3x×4m
60÷4m=3x
15m=3x
15÷3m=x
5m =x
2x = 10m
area= 5×10 m sq
= 50 m sq.
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