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1. The area of a rectangle is 200 sq. meter . If the length is twice the breadth , what is the perimeter of the rectangle ?
- A. 40
- B. 40
- C. 40
- D. 40
Answer: Option C
Explanation:
Let L be the length and B be the breadth.
So, L x B = 200
or, 2B x B = 200
or, B2 = 100
or, B = 10
So, L = 2B = 2 x 10 = 20
Therefore, the perimeter of the rectangle = 2 (L + B) = 2 (20 + 10) = 2 x 30 = 60.
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