The breadth of a rectangle is 9 cm less than it's length. If the ratio between the length and the breadth is 5 : 2 , then the breadth of the rectangle is

5 cm

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8 cm

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6 cm

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4 cm

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Solution

The correct option is C
6 cm

Let the length be 5x and the breadth be 2x

According to the question, 2x = 5x - 9

$\Rightarrow 5 x - 2 x = 9$

$\Rightarrow 3 x = 9$

$\Rightarrow x = 3$

$∴$ Breadth = $2 x$
= $2 \times 3$
= 6 cm

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The breadth of a rectangle is 9 cm less than it's length. If the ratio between the length and the breadth is 5 : 2 , then the breadth of the rectangle is

The correct option is C 6 cm Let the length be 5x and the breadth be 2x According to the question, 2x = 5x - 9 ⇒5x−2x=9 ⇒3x=9 ⇒x=3 ∴ Breadth = 2x = 2×3 = 6 cm

The correct option is C
6 cm

Let the length be 5x and the breadth be 2x

According to the question, 2x = 5x - 9

$\Rightarrow 5 x - 2 x = 9$

$\Rightarrow 3 x = 9$

$\Rightarrow x = 3$

$∴$ Breadth = $2 x$
= $2 \times 3$
= 6 cm