If Albert can travel 200 miles in 4 hours, how many hours will it take Albert

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BTGModeratorVI: Legendary Member; Posts: 1223; Joined: Sat Feb 15, 2020 2:23 pmFollowed by: 1 member

by BTGModeratorVI » Tue Mar 31, 2020 5:16 am

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If Albert can travel 200 miles in 4 hours, how many hours will it take Albert, traveling at the same constant rate, to travel 350 miles?

A. 5
B. 6
C. 7
D. 8
E. 10

Answer: C
Source: Princeton Review

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Source: Beat The GMAT — Problem Solving | Tue Mar 31, 2020 5:16 am

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Re: If Albert can travel 200 miles in 4 hours, how many hours will it take Albert

by [email protected] » Tue Mar 31, 2020 3:09 pm

Hi All,

We're told that Albert can travel 200 miles in 4 hours. We're asked how many hours it will take Albert, traveling at the same constant rate, to travel 350 miles? The math behind this question can be approached in a number of different ways, including as a rate or as a ratio.

At a rate of 200 miles in 4 hours, Albert will travel 50 miles in 1 hour. Over a 7 hour trip, Albert would travel...

(7 hours)(50 miles/hour) = 350 miles

Final Answer: C

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Rich

Contact Rich at [email protected]

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Re: If Albert can travel 200 miles in 4 hours, how many hours will it take Albert

by Scott@TargetTestPrep » Wed Apr 01, 2020 4:15 pm

BTGModeratorVI wrote: ↑
Tue Mar 31, 2020 5:16 am
If Albert can travel 200 miles in 4 hours, how many hours will it take Albert, traveling at the same constant rate, to travel 350 miles?

A. 5
B. 6
C. 7
D. 8
E. 10

Answer: C
Source: Princeton Review

Since Albert has a rate of 200/4 = 50 mph, it will take him 350/50 = 7 hours to travel 350 miles.

Answer: C

Scott Woodbury-Stewart
Founder and CEO
[email protected]

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

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Brent@GMATPrepNow: GMAT Instructor; Posts: 16207; Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members; Location: Vancouver, BC; Thanked: 5254 times; GMAT Score:770

Re: If Albert can travel 200 miles in 4 hours, how many hours will it take Albert

by Brent@GMATPrepNow » Thu Apr 02, 2020 6:58 am

BTGModeratorVI wrote: ↑
Tue Mar 31, 2020 5:16 am
If Albert can travel 200 miles in 4 hours, how many hours will it take Albert, traveling at the same constant rate, to travel 350 miles?

A. 5
B. 6
C. 7
D. 8
E. 10

Answer: C
Source: Princeton Review

A few options here.

One approach is to use equivalent ratios

Let t = time to travel 350 miles

Our ratio is distance traveled/time

We get: 200/4 = 350/t
Cross multiply to get: (200)(t) = (4)(350)
Simplify: 200t = 1400
Solve: t = 7 hours

Answer: C

Cheers,
Brent

Brent Hanneson - Creator of GMATPrepNow.com

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