Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized for You

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Re: Number Properties from GMATPrep (2) [#permalink]

Show Tags

28 Sep 2009, 22:20

I used a less algebraic solution by backsolving/simple logic.

350 is divisible by 7 but 50 is not an option. Looking at the options you can estimate that subtractive 77 and dividing will give you something between 38 and 42.

350 – 77 = 273. 273/7 = 39.

Hence (1)77 + (39)7 = 350 Hence Ans = 40.

This may not work for more complex questions but this answer took me <1min solving this way.

Re: Number Properties from GMATPrep (2) [#permalink]

Show Tags

29 Sep 2009, 05:45

My approach was somewhat similar to yangsta8's.Looking at the possible answers one can see that you can only have one 77 in the sequence(since 350 -(2x77) = 196 and 196/7=28, which is not in the answer options)

Re: Number Properties from GMATPrep (2) [#permalink]

Show Tags

21 Oct 2016, 08:31

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________