The word translation

Expert replies

nidhis.1408: Master | Next Rank: 500 Posts; Posts: 135; Joined: Mon Oct 03, 2011 6:54 amFollowed by: 4 members

by nidhis.1408 » Sun Jul 08, 2012 12:09 pm

An empty bucket being filled with paint at a constant rate takes 6 minutes to be filled to 7/10 of its capacity. How much more time will it take to fill the bucket to full capacity?

Like this post

Source: Beat The GMAT — Problem Solving | Sun Jul 08, 2012 12:09 pm

eagleeye: Legendary Member; Posts: 520; Joined: Sat Apr 28, 2012 9:12 pmFollowed by: 49 members; Thanked: 339 times; GMAT Score:770

by eagleeye » Sun Jul 08, 2012 12:16 pm

nidhis.1408 wrote:An empty bucket being filled with paint at a constant rate takes 6 minutes to be filled to 7/10 of its capacity. How much more time will it take to fill the bucket to full capacity?

7 out of 10 parts are filled, hence 3 parts are left.
To fill 7 parts, it takes minutes = 6
To fill 1 part, it takes minutes = 6/7
To fill 3 parts, it takes minutes = 3*6/7 = 18/7 minutes.

Like this post

Testluv: GMAT Instructor; Posts: 1302; Joined: Mon Oct 19, 2009 2:13 pmFollowed by: 164 members; Location: Toronto; Thanked: 539 times; GMAT Score:800

by Testluv » Sun Jul 08, 2012 2:56 pm

nidhis.1408 wrote:An empty bucket being filled with paint at a constant rate takes 6 minutes to be filled to 7/10 of its capacity. How much more time will it take to fill the bucket to full capacity?

Setting up a ratio is the best way to handle questions of this sort.

We know it takes 6 minutes to fill up 0.7 of the bucket:

6 min/.7 = x/1

The "1" represents 100% capacity while the ".7" represents the .7 full.

In the ratio above, we have time/fraction filled = time/ fraction filled. That's not the only way to do it. We could have also went with:

6 min/x min = .7/1

So, that's time/time = fraction filled/fraction filled.

In both cases, x solves to 60/7.

There will likely be a trap answer that corresponds to that result--that's the right answer but to the wrong question.

The question asks how much MORE time. So, it's 60/7 - 6 = 60/7 - 42/7 = 18/7 minutes.

In problem solving, remember to always confirm that you're answering the right question, and that your answer makes sense.

Cheers

Kaplan Teacher in Toronto

Like this post

Jeff@TargetTestPrep: GMAT Instructor; Posts: 1462; Joined: Thu Apr 09, 2015 9:34 amFollowed by: 22 members; Location: New York, NY; Thanked: 39 times

by Jeff@TargetTestPrep » Fri Apr 06, 2018 7:51 am

nidhis.1408 wrote:An empty bucket being filled with paint at a constant rate takes 6 minutes to be filled to 7/10 of its capacity. How much more time will it take to fill the bucket to full capacity?

We can create the proportion:

6/(7/10) = n/(3/10)

60/7 = 10n/3

180 = 70n

180/70 = n

18/7 = n

Jeffrey Miller
Head of GMAT Instruction
[email protected]

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

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

559 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review