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# To reach her destination, Jeanette must drive 90 miles. If she drives

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Math Expert
Joined: 02 Sep 2009
Posts: 56266
To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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27 Feb 2015, 05:55
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Difficulty:

5% (low)

Question Stats:

91% (01:17) correct 9% (01:28) wrong based on 107 sessions

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To reach her destination, Jeanette must drive 90 miles. If she drives 5 miles every 7 minutes, how much time will it take her to reach her destination?

A. 2 hours and 2 minutes
B. 2 hours and 6 minutes
C. 2 hours and 10 minutes
D. 2 hours and 12 minutes
E. 2 hours and 15 minutes

Kudos for a correct solution.

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Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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27 Feb 2015, 07:11
1
7 minute for 5 miles how much for 90? minutes for 1(7/5) mile multiplied by 90 miles.

7*90/5= 126> 2 hours 6 min answer is B
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Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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27 Feb 2015, 08:26
1
She need 90 miles/5 miles = 14 times of 7 minutes -> 14*7=126 minutes = 2 hours 6 minutes so B
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Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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27 Feb 2015, 09:46
1
Bunuel wrote:
To reach her destination, Jeanette must drive 90 miles. If she drives 5 miles every 7 minutes, how much time will it take her to reach her destination?

A. 2 hours and 2 minutes
B. 2 hours and 6 minutes
C. 2 hours and 10 minutes
D. 2 hours and 12 minutes
E. 2 hours and 15 minutes

Kudos for a correct solution.

If 5 miles = 7 minutes then,
90 miles = ?
= (90 * 7)/5
= 126 minutes
= 120 + 6 minutes
= 2 hours and 6 minutes
Hence option (B).

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Posts: 94
Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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27 Feb 2015, 10:30
1
For these problems I love using a ratio approach. Understanding ratios on the GMAT is a great way to simplify problems.

Total distance is 90 miles.

Ratio of miles to minutes is:
5miles = 7minutes.

You want to find the total number of miles here so 90miles /5miles = 18.

The multiplier is 18. 7 minutes * 18 equals 126 minutes. 126 minutes equals 2 hours 6 minutes.

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Math Expert
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Posts: 56266
Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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02 Mar 2015, 05:46
Bunuel wrote:
To reach her destination, Jeanette must drive 90 miles. If she drives 5 miles every 7 minutes, how much time will it take her to reach her destination?

A. 2 hours and 2 minutes
B. 2 hours and 6 minutes
C. 2 hours and 10 minutes
D. 2 hours and 12 minutes
E. 2 hours and 15 minutes

Kudos for a correct solution.

MAGOOSH OFFICIAL SOLUTION:
Attachment:

jeanettedrives90miles_text.PNG [ 20.37 KiB | Viewed 2333 times ]

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Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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28 Feb 2018, 11:27
Bunuel wrote:
To reach her destination, Jeanette must drive 90 miles. If she drives 5 miles every 7 minutes, how much time will it take her to reach her destination?

A. 2 hours and 2 minutes
B. 2 hours and 6 minutes
C. 2 hours and 10 minutes
D. 2 hours and 12 minutes
E. 2 hours and 15 minutes

Jeanette’s rate is 5/7 miles per minute.

Thus, it takes her 90/(5/7) = 630/5 = 126 minutes = 2 hours and 6 minutes to reach her destination.

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Re: To reach her destination, Jeanette must drive 90 miles. If she drives   [#permalink] 28 Feb 2018, 11:27
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