The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?
Options:
A . 75% decrease
B . 50% decrease
C . 50% increase
D . 25% increase
Answer: Option C
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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