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One cylinder stands inside another cylinder, what is the volume of the

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One cylinder stands inside another cylinder, what is the volume of the  [#permalink]

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New post 09 Sep 2018, 08:52
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

70% (01:19) correct 30% (00:56) wrong based on 67 sessions

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One cylinder stands inside another cylinder, what is the volume of the  [#permalink]

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New post 26 Sep 2018, 23:24
Bunuel wrote:
One cylinder stands inside another cylinder, what is the volume of the space between the two cylinders?

(1) The difference in radius between the outer cylinder and the inner cylinder is 3.
(2) The difference in height between the outer cylinder and the inner cylinder is 15.


volume of the space between two cylinders = difference between the volumes of the two cylinders
\(\pi\)\(R^2\)H- \(\pi\)\(r^2\)h= \(\pi(R^2H - r^2h)\)

(1) The difference in radius between the outer cylinder and the inner cylinder is 3.
R-r = 3
R and r can have various possible combinations (3,1) (5,2) (100,97)
not sufficient

(2) The difference in height between the outer cylinder and the inner cylinder is 15
H-h = 15
again H and h can have various possible combination

not sufficient

E
GMAT Club Bot
One cylinder stands inside another cylinder, what is the volume of the   [#permalink] 26 Sep 2018, 23:24
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