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

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

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New post 14 Apr 2019, 04:15
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

95% (00:33) correct 5% (01:06) wrong based on 22 sessions

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Joined: 05 Jul 2018
Posts: 105
Location: India
Concentration: General Management, Technology
GRE 1: Q162 V149
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WE: Information Technology (Consulting)
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Re: If a wheel is spinning at 1200 revolutions per minute, how many revolu  [#permalink]

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

Revolutions in t minutes = 20t

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

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New post 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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New post 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
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Re: If a wheel is spinning at 1200 revolutions per minute, how many revolu   [#permalink] 14 Apr 2019, 05:05
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