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# At the Gymnastics Club's annual car wash, it takes M minutes to wash C

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Manager
Joined: 08 May 2015
Posts: 97
GMAT 1: 630 Q39 V38
GMAT 2: 670 Q44 V38
GMAT 3: 750 Q49 V44
At the Gymnastics Club's annual car wash, it takes M minutes to wash C  [#permalink]

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15 Aug 2015, 07:08
2
2
00:00

Difficulty:

45% (medium)

Question Stats:

57% (01:08) correct 43% (01:05) wrong based on 87 sessions

### HideShow timer Statistics

At the Gymnastics Club's annual car wash, it takes M minutes to wash C cars. At this rate, in terms of M, how many hours will it take the club to wash 5C cars?

A. M/3
B. M/5
C. M/12
D. 3M
E. 5M
CEO
Joined: 20 Mar 2014
Posts: 2629
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
GPA: 3.7
WE: Engineering (Aerospace and Defense)
Re: At the Gymnastics Club's annual car wash, it takes M minutes to wash C  [#permalink]

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15 Aug 2015, 08:43
Mascarfi wrote:
At the Gymnastics Club's annual car wash, it takes M minutes to wash C cars. At this rate, in terms of M, how many hours will it take the club to wash 5C cars?

A. M/3
B. M/5
C. M/12
D. 3M
E. 5M

Assume M = 5 minutes and C = 10 cars.

Thus, 5c cars = 50 cars in 5*5 = 25 mins.

Thus in hours = 25/60 = 5/12 .

Option C with M = 5 is the correct answer.
Manager
Joined: 09 Jan 2013
Posts: 74
Concentration: Entrepreneurship, Sustainability
GMAT 1: 650 Q45 V34
GMAT 2: 740 Q51 V39
GRE 1: Q790 V650
GPA: 3.76
WE: Other (Pharmaceuticals and Biotech)
Re: At the Gymnastics Club's annual car wash, it takes M minutes to wash C  [#permalink]

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16 Aug 2015, 01:55
1
Mascarfi wrote:
At the Gymnastics Club's annual car wash, it takes M minutes to wash C cars. At this rate, in terms of M, how many hours will it take the club to wash 5C cars?

A. M/3
B. M/5
C. M/12
D. 3M
E. 5M

C cars ------------- M min
5C cars ------------- 5M min = 5M/60 hrs = M/12 hrs

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Joined: 09 Sep 2013
Posts: 9845
Re: At the Gymnastics Club's annual car wash, it takes M minutes to wash C  [#permalink]

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18 Oct 2018, 16:25
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: At the Gymnastics Club's annual car wash, it takes M minutes to wash C   [#permalink] 18 Oct 2018, 16:25
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