Question

a rectangular pond is 200 feet long 100ft wide and 20 ft deep . 4000 cubic feet of water evaporated during the summer how much will the water level drop

Answer 1

$\textbf{\underline{Question:}}$ A rectangular pond is 200 feet long 100ft wide and 20 ft deep. 4000 feet³ of water evaporated during the summer. How much will the water level drop?

$\Longrightarrow{\boxed{\bold{ Answer:\:0.2\:feet}}}$

$\bold{\underline{Step\:by\:step\:explanation :-}}$

$\textbf{\textit{\underline{Since we know that,}}}$

Volume of cuboidal pond = l × b × h

= 200 ft × 100 ft × 20 ft

$\bold{= 400000\: {ft}^{3}}$

Now, 4000 ft³ water evaporated.

So water left in pond

= 400000 ft³ - 4000 ft³

$\bold{= 396000\: {ft}^{3}}$

But obviously now height of water level will not be 20 ft as before because water volume have decreased.

396000 ft³ = 200 ft × 100 ft × x

396000/20000 ft = x

$\bold{19.8\:ft = x}$

Hence, water level decreased = 20 ft - 19.8 ft

$\large{\textbf{= 0.2 ft}}$

Answer 2

Hello! ❤

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Thanks for asking this!

The answer goes here ...

{Refer to the attachment with my answer to understand it at a Glance}

✓✓ Things to remember under this Question :

✍✍ Volume of Cuboid = length × breadth × Height

✍✍ About the representation of units

❤ Our Final answer is 0.2 feet will the water level drop

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