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Question

Find the ratio of the following
$20 c m$ to $5 m$

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Solution

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Converting into same units.
We know that,
$1 m = 100 c m$
$∴$ $5 m = 500 c m$
Thus the required ratio is,
$20 c m : 500 c m$
$1 c m : 25 c m$
Then,
we get the required ratio as $1 : 25$

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