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# If a wheel is spinning at 1200 revolutions per minute, how many revolu

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Math Expert
Joined: 02 Sep 2009
Posts: 58453
If a wheel is spinning at 1200 revolutions per minute, how many revolu  [#permalink]

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Updated on: 10 Jul 2019, 04:34
00:00

Difficulty:

5% (low)

Question Stats:

100% (00:36) correct 0% (00:00) wrong based on 36 sessions

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If a wheel is spinning at 1200 revolutions per minute, how many revolutions will it make in t seconds?

(A) 2t
(B) 10t
(C) 20t
(D) 48t
(E) 72t

Source: Nova GMAT
Difficulty Level: 500

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Originally posted by Bunuel on 14 Apr 2019, 04:15.
Last edited by SajjadAhmad on 10 Jul 2019, 04:34, edited 1 time in total.
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Re: If a wheel is spinning at 1200 revolutions per minute, how many revolu  [#permalink]

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14 Apr 2019, 04:20
Revolution in a second =1200/60= 20 revolution pe minute

Revolutions in t minutes = 20t

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Re: If a wheel is spinning at 1200 revolutions per minute, how many revolu  [#permalink]

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14 Apr 2019, 04:45
For 60 sec 1200 rev then for t sec = 1200xt/60 = 20t

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Re: If a wheel is spinning at 1200 revolutions per minute, how many revolu  [#permalink]

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14 Apr 2019, 05:05
Bunuel wrote:
If a wheel is spinning at 1200 revolutions per minute, how many revolutions will it make in t seconds?

(A) 2t
(B) 10t
(C) 20t
(D) 48t
(E) 72t

revolutions per second
1200/60 - 20 and in t sec ; 20t
IMO C
Re: If a wheel is spinning at 1200 revolutions per minute, how many revolu   [#permalink] 14 Apr 2019, 05:05
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