Lessons

General Aptitude
25.1 Area - General Questions

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Q.

The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?

View Answer

Correct choice: B

Explanation:

2(l + b)/ = 5/
b 1

⇒ 2l + 2b = 5b

⇒ 3b = 2l

b = 2/ l
3

Then, Area = 216 cm2

l x b = 216

l x 2/ l = 216
3

l2 = 324

l = 18 cm.

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