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

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

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New post 27 Feb 2015, 04:55
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A
B
C
D
E

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Question Stats:

92% (01:18) correct 8% (01:33) wrong based on 104 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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New post 27 Feb 2015, 06:11
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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New post 27 Feb 2015, 07:26
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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New post 27 Feb 2015, 08:46
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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Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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New post 27 Feb 2015, 09:30
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.

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

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New post 02 Mar 2015, 04:46
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
jeanettedrives90miles_text.PNG [ 20.37 KiB | Viewed 1937 times ]

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New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
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Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
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Re: To reach her destination, Jeanette must drive 90 miles. If she drives  [#permalink]

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New post 28 Feb 2018, 10:27
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.

Answer: B
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Re: To reach her destination, Jeanette must drive 90 miles. If she drives &nbs [#permalink] 28 Feb 2018, 10:27
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