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Area of Square

The length an...

Question

The length and breadth of a class room are in the ratio 3 : 5 if the breadth of the room is 20 m. Find the length of the room?

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Solution

$\frac{l}{b} = \frac{3}{5}$ if $b = 20$
$\frac{l}{20} = \frac{3}{5}$
$\Rightarrow l = \frac{20 \times 3}{5} = 12 m$ .

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