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# How many cylindrical oil drums, with a diameter of 1.5 feet,

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CEO
Joined: 21 Jan 2007
Posts: 2734

Kudos [?]: 1076 [0], given: 4

Location: New York City
How many cylindrical oil drums, with a diameter of 1.5 feet, [#permalink]

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24 Nov 2007, 02:52
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

How many cylindrical oil drums, with a diameter of 1.5 feet, and a length of 4 feet, would be needed to hold the contents of a full cylindrical fuel ank, with a diameter of 12 ft and a length of 60 ft?

Kudos [?]: 1076 [0], given: 4

VP
Joined: 08 Jun 2005
Posts: 1143

Kudos [?]: 254 [0], given: 0

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24 Nov 2007, 05:17
Drum 1

r = 3/4
h = 4

volume = pi*9/16*4 = pi*9/4

Drum 2

r = 6
h = 60

volume = pi*6^2*60 = pi*2160

solve

pi*2160/pi*2.25 = 960

Kudos [?]: 254 [0], given: 0

Senior Manager
Joined: 06 Aug 2007
Posts: 360

Kudos [?]: 35 [0], given: 0

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24 Nov 2007, 09:47
KillerSquirrel wrote:
Drum 1

r = 3/4
h = 4

volume = pi*9/16*4 = pi*9/4

Drum 2

r = 6
h = 60

volume = pi*6^2*60 = pi*2160

solve

pi*2160/pi*2.25 = 960

yup got 960 too ..same approach

Volume of bigger drum/Volume of smaller drum

Kudos [?]: 35 [0], given: 0

24 Nov 2007, 09:47
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# How many cylindrical oil drums, with a diameter of 1.5 feet,

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