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Total Surface Area of a Cuboid

Find the rati...

Question

Find the ratio of the following
$40 c m$ to $1.5 m$

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Solution

$40 c m : 1.5 m$
$= 40 c m : 1.5 \times 100 c m$ [Since $1 m = 100 c m$ ]
$= 40 : 150$
$= 4 : 15$
$∴$ the ratio is $4 : 15$

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