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Area of Rectangle

The area of t...

Question

The area of the floor of a square room is 25 sq. m and the area of 4 walls of the room is 70 sq. m. What is the height of the room?

A

4.5 m

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B

3.8 m

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C

3.5 m

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D

4.5 m

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Solution

The correct option is C 3.5 m
Side of the square = $\sqrt{25 s q . m}$ = 5 m
Area of 4 walls = 4 (l × h)
$\Rightarrow$ 70 sq. m = 4 (5 × h)
$\Rightarrow$ h = 3.5 m

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