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The sum of 6 minutes, 35 seconds and 3 minutes, 20 seconds is approxim

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Math Expert
Joined: 02 Sep 2009
Posts: 46202
The sum of 6 minutes, 35 seconds and 3 minutes, 20 seconds is approxim [#permalink]

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11 Jan 2018, 21:29
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Difficulty:

25% (medium)

Question Stats:

100% (00:58) correct 0% (00:00) wrong based on 12 sessions

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The sum of 6 minutes, 35 seconds and 3 minutes, 20 seconds is approximately what percent of one hour?

A. 27%
B. 17%
C. 11%
D. 10%
E. 6%

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Intern
Joined: 25 Jan 2016
Posts: 18
Location: India
GPA: 3.9
WE: Engineering (Consulting)
Re: The sum of 6 minutes, 35 seconds and 3 minutes, 20 seconds is approxim [#permalink]

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11 Jan 2018, 21:39
6 Min 35 Sec = 60*6 +35 =395 s
3 Min 20 Sec = 60*3 + 20 = 200 s ; So in total 395+200 = 595 sec is what % of 3600 sec ( 1 hour = 60*60 s)

(595/3600)*100 =16.52 % or 17% appox

SO B
Intern
Joined: 25 Jan 2016
Posts: 18
Location: India
GPA: 3.9
WE: Engineering (Consulting)
Re: The sum of 6 minutes, 35 seconds and 3 minutes, 20 seconds is approxim [#permalink]

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11 Jan 2018, 21:42
Alternate method,

6 min -35 S + 3 min -20 s = 9 Min + 55 sec = 10 min appox

10/60*100= 16.66 % ( So , D)
Re: The sum of 6 minutes, 35 seconds and 3 minutes, 20 seconds is approxim   [#permalink] 11 Jan 2018, 21:42
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