Challenge Problem Showdown – April 16nd, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
The positive value of x that satisfies the equation (1 + 2x)5 = (1 + 3x)4 is between
Challenge Problem Showdown – April 9nd, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
The expression x#y denotes the product of the consecutive multiples of 3 between x and y, inclusive. What is the sum of the exponents in the prime factorization of 21#42?
Free Integrated Reasoning Workshops!
Update, 5/7/12: We’ve added four more workshops! See the dates and register here. Hurry, before these sell out too!
Manhattan GMAT is offering a series of free online Integrated Reasoning workshops hosted by our Vice President of Academics Chris Ryan. Chris will dive deeply and provide hands-on techniques for tackling the new IR section. You do NOT want to miss this!
Below are the dates and links to where you can sign up for a workshop. Hope to see you (virtually) there!
April 14th (12-2 pm EST) — SOLD OUT
April 16th (7-9 pm EST) — SOLD OUT
April 19th (9:30-11:30 pm EST) — SOLD OUT
April 21th (12-2 pm EST) — SOLD OUT
April 23rd (7-9 pm EST)
April 26th (9:30-11:30 pm EST)
April 28th (12-2 pm EST)
Andrew Yang and Venture for America in Time Magazine!
Former Manhattan GMAT President Andrew Yang was featured in full-page article in Time Magazine about Andrew’s new endeavor, Venture for America! Added bonus: Manhattan GMAT gets a shout out in the first paragraph!
Below is a screen shot of the post. You can read the whole article over on Venture for America’s site.
Challenge Problem Showdown – March 19th, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
(1.0002)(0.9999) “ (1.0001)(0.9998) =
Challenge Problem Showdown – March 12th, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
What is the absolute difference between the cubes of two different non-negative integers?
(1) One of the integers is 2 greater than the other integer.
(2) The square of the sum of the integers is 49 greater than the product of the integers.
Challenge Problem Showdown – March 5th, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
The integers a, b, c, and d can each be equal to 0, 1, 2, or 3, independently.
What is the value of (a + 1)(b + 1)(c + 1)(d + 1)?(1) a + 4b + 16c + 64d = 165
(2) 64a + 16b + 4c + d = 90
Challenge Problem Showdown – February 26th, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
How much greater is the square of the sum of three different positive integers than the sum of their squares?
(1) The sum of the products of all possible pairs of two different integers out of the original set of three is 61.
(2) The largest of the three integers, 7, is equal to the sum of the two smaller integers.
Challenge Problem Showdown – February 13th, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
Standing on the origin of an xy-coordinate plane, John takes a 1-unit step at random in one of the following 4 directions: up, down, left, or right. If he takes 3 more steps under the same random conditions, what is the probability that he winds up at the origin again?
Challenge Problem Showdown – February 6th, 2012
We invite you to test your GMAT knowledge for a chance to win! Each week, we will 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 a free Manhattan GMAT Prep item. Tell your friends to get out their scrap paper and start solving!
Here is this week’s problem:
Each of three investments has a 20% of becoming worthless within a year of purchase, independently of what happens to the other two investments. If Simone invests an equal sum in each of these three investments on January 1, the approximate chance that by the end of the year, she loses no more than 1/3 of her original investment is