The area of rectangular cover of a notebook is 63 sq cm. If the length is 9 cm, what is the width of the cover?

6 cm

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7 cm

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8 cm

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9 cm

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Solution

The correct option is B 7 cm
Area of rectangle = length $\times$ breadth

$∴$ 63 = 9 $\times$ breadth

$\Rightarrow 63 \div$ 9 = breadth

$\Rightarrow$ breadth = 7 cm

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