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# A machine labels 150 bottles in 20 minutes. At this rate, how many min

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Math Expert
Joined: 02 Sep 2009
Posts: 56304
A machine labels 150 bottles in 20 minutes. At this rate, how many min  [#permalink]

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11 Jan 2019, 00:28
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Difficulty:

5% (low)

Question Stats:

92% (00:49) correct 8% (01:22) wrong based on 44 sessions

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A machine labels 150 bottles in 20 minutes. At this rate, how many minutes does it take to label 60 bottles?

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

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Status: It always seems impossible until it's done.
Joined: 16 Sep 2016
Posts: 751
GMAT 1: 740 Q50 V40
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Re: A machine labels 150 bottles in 20 minutes. At this rate, how many min  [#permalink]

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11 Jan 2019, 00:41
150 Bottles -> 20 mins
15 bottles -> 2 mins (dividing by 10)
60 bottles -> 2*4 = 8 mins
No need to write anything, practice doing such questions in your head.

Bunuel wrote:
A machine labels 150 bottles in 20 minutes. At this rate, how many minutes does it take to label 60 bottles?

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

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Joined: 18 Aug 2017
Posts: 4252
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: A machine labels 150 bottles in 20 minutes. At this rate, how many min  [#permalink]

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11 Jan 2019, 02:55
Bunuel wrote:
A machine labels 150 bottles in 20 minutes. At this rate, how many minutes does it take to label 60 bottles?

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

per minute rate = 150/2 = 15/2

for 60 bottles ; 60 * 2/15 = 8 mins
IMO D
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Re: A machine labels 150 bottles in 20 minutes. At this rate, how many min   [#permalink] 11 Jan 2019, 02:55
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