The figure above shows the shape and dimensions of the

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The figure above shows the shape and dimensions of the [#permalink]

21 Mar 2012, 14:57

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Question Stats:

37% (00:00) correct

62% (01:15) wrong

based on 2 sessions

The figure above shows the shape and dimensions of the inside of a container that has a flat retangular top and semicircular ends perpendicular to the top. When the container is loaded to its exact capacity with slag that weighs 50 pounds per cubic foot, what will be the approximate weight, in tons, of the slag in the container?
(1 ton = 2000 pounds)

A. 2
B. 4
C. 6
D. 8
E. 10

[Reveal] Spoiler: OA

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Re: The figure above shows the shape and dimensions of the [#permalink]

21 Mar 2012, 15:25

eybrj2 wrote:

The container shown is a half of a cylinder, with the height of 10 feet and the radius of a base of 8/2=4 feet. Its volume is \frac{1}{2}\pi{r^2}h=80\pi cubic foot.

The weight of the slag is 80\pi*50=4,000\pi pounds, which is \frac{4,000\pi}{2,000}=2\pi\approx{6.28} tons.

Answer: C.
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Re: The figure above shows the shape and dimensions of the [#permalink] 21 Mar 2012, 15:25

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The figure above shows the shape and dimensions of the

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