Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

If , which of the following could be true about the reciprocals of a, b, c, and d?

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Here are the free GRE events we’re holding this week.

10/22/12 – Online – The GRE with Jen Study Hall – 8:30-10:00 PM

10/22/12 – New York, NY – Free Trial Class – 6:30-9:30 PM

Looking for more free events? Check out our Free Events Listings Page.

Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

To serve as team coach, 1 person is to be selected from among the people in Set A.
The 9 team players are to be selected from among the people in Set B, which has at least that many people.
There are 5 times as many different teams possible as there are different coaches possible.

Quantity A

The number of people in Set A.

Quantity B

The number of people in Set B.

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Here are the free GRE events we’re holding this week.

10/15/12 – Online – The GRE with Jen Study Hall – 7:00-8:30 PM

10/15/12 – Boston, MA – Free Trial Class – 6:30-9:30 PM

Looking for more free events? Check out our Free Events Listings Page.

Here are the free GRE events we’re holding this week.

10/8/12 – Online – Mondays with Jen Study Hall – 7:00-8:30 PM

10/14/12 – New York, NY – Free Trial Class – 2:00-5:00 PM

Looking for more free events? Check out our Free Events Listings Page.

Here are the free GRE events we’re holding this week.

10/2/12 – Washington, D.C. – Free Trial Class – 6:30-9:30 PM

10/2/12 – Los Angeles, CA – Free Trial Class – 6:30-9:30 PM

10/4/12 – New York, NY – Free Trial Class – 6:30-9:30 PM

10/7/12 – Online – Free Trial Class – 3:00-6:00 PM

Looking for more free events? Check out our Free Events Listings Page.

Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

Of three possible events, event A is independent of each of the other two, and events B and C are mutually exclusive.  The probabilities that the individual events A, B, and C will occur are 0.2, 0.3, and 0.6, respectively.  What is the probability that none of the three events will occur?

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Here are the free GRE events we’re holding this week.

9/24/12 – Online – Monday’s With Jen – 7:00-8:30 PM

9/26/12 – Dallas, TX – Free Trial Class – 6:30-9:30 PM

Looking for more free events? Check out our Free Events Listings Page.

Each week, we post a new Challenge Problem for you to attempt. If you submit the correct answer, you will be entered into that week’s drawing for two free Manhattan Prep GRE Strategy Guides.

Two stores usually charge the same regular price for identical jars of peanut butter. This week, Store A is offering the jars of peanut butter for 10% less than regular price, and Store B is offering 6 jars of peanut butter for the regular price of 5.  If 6 jars of peanut butter cost a total of $1.18 less at Store B than at Store A this week, what is the regular price of a jar of peanut butter?

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Here are the free GRE events we’re holding this week.

9/17/12 – Chicago, IL – Free Trial Class – 6:30-9:30 PM

9/18/12 – Austin, TX – Free Trial Class – 6:30-9:30 PM

9/19/12 – Atlanta, GA – Free Trial Class – 6:30-9:30 PM

9/23/12 – New York, NY – Free Trial Class – 5:30-8:30 PM

Looking for more free events? Check out our Free Events Listings Page.