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If a swimming pool drains \( 21 \mathrm{~L} \) of water in \( 1 \mathrm{~min} \), find how much water is drained out of the pool in \( 14 \mathrm{~min} \).
Given:
A swimming pool drains \( 21 \mathrm{~L} \) of water in \( 1 \mathrm{~min} \).
To do:
We have to find the volume of water drained out of the pool in \( 14 \mathrm{~min} \).
Solution:
Volume of water drained in 1 min $=21\ L$
This implies,
Volume of water drained out of the pool in \( 14 \mathrm{~min} =21\times14\ L \)
$=294\ L$
Therefore, $294\ L$ of water is drained out of the pool in \( 14 \mathrm{~min} \).
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