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The ratio of the length and the perimeter of a rectangle is 2 : 7. What is the ratio of the length and breadth of the rectangle?
Answer & Solution
Correct Answer:
Option
A
$$\eqalign{
& \frac{l}{{2\left( {l + b} \right)}} = \frac{2}{7} \cr
& \Rightarrow 7l = 4l + 4b \cr
& \Rightarrow 3l = 4b \cr
& \Rightarrow \frac{l}{b} = \frac{4}{3} = 4:3 \cr} $$
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