Lessons

General Aptitude
25.1 Area - General Questions

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Q.

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

View Answer

Correct choice: B

Explanation:

Let original length = x and original breadth = y.

Original area = xy.

New length = x .
2

New breadth = 3y.

New area = x x 3y = 3 xy.
2 2
∴ Increase % = 1 xy x 1 x 100 % = 50%.
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