How do you do this Math question?

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<p><a href="http://i%5B/url%5D"&gt;http://i&lt;/a>. im gur.com/KFuCuJa.png(without spaces)</p>

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<p>Hint: What face of the tank has the least area, and what is its area? Once you know this, the problem is easy.</p>

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<p>This is from Jan 2012 QAS (I just took it!)</p>

<p>It’s easy. The side with the least area is the 2x3 side. If you put it on this side, the height needs to be such that the liquid has volume 16. Since V = l X w X h, you have</p>

<p>(2)(3)(h) = 16 ===> h = 16/6 = 8/3</p>

<p>Much simpler once you think about it this way. The volume of the liquid is the same no matter how you orient it.</p>