Search found 19 matches


how to tackle this question?

What is the greatest integer, n, such that 10^n is a factor of 24! ?

I know it requires prime factorization, but I'm stumped after that....

by magicalhat

Thu Jun 20, 2013 9:35 pm
Forum: Problem Solving
Topic: how to tackle this question?
Replies: 2
Views: 1458

What an inspiring story! I've gotten back on my studies after a loooong break. It's encouraging to know that it can be done!

by magicalhat

Thu Jun 20, 2013 9:33 pm
Forum: I just Beat The GMAT!
Topic: An average Guy's Story->580 in Diagnostic to 730 on GMAT
Replies: 62
Views: 63993

That is inspiring! I'm hoping that this advice will help me when I sit for the test next week...

by magicalhat

Thu Nov 17, 2011 11:06 am
Forum: I just Beat The GMAT!
Topic: 4 attempts, an year's struggle and finally got 700 !
Replies: 10
Views: 4371
by magicalhat

Tue Oct 11, 2011 9:10 am
Forum: I just Beat The GMAT!
Topic: The 100 day Guide to 740
Replies: 61
Views: 26976

MGMAT CAT vs Real Thing

Hi, How close are the scores on MGMAT CATs to the scores people get on the real GMAT. My tutor told me that people usually do better on maths in the real thing and a little bit worse in verbal on the real thing. What do you guys think? Also, just a message to my (awesome) tutor, if you're reading th...

by magicalhat

Tue Oct 11, 2011 9:08 am
Forum: GMAT Strategy
Topic: MGMAT CAT vs Real Thing
Replies: 1
Views: 1804

i found my tutor on the beat the gmat tutor blogs. you might also want to try gmatix.

by magicalhat

Wed Jul 13, 2011 8:11 pm
Forum: GMAT Strategy
Topic: Private Tutoring Question
Replies: 4
Views: 1795

I would make a chart

by magicalhat

Mon Jul 04, 2011 7:11 am
Forum: Data Sufficiency
Topic: GMAT Prep Question
Replies: 2
Views: 1051

isn't it true that the GMAT prefers that pronouns not refer to nouns embedded in prepositional phrases?

by magicalhat

Sat Jun 18, 2011 8:26 am
Forum: Sentence Correction
Topic: Pronoun inside Prepositional Phrase?
Replies: 6
Views: 1776

awesome! thank you! If n is a positive integer, is (1/10)^n < 0.01 ? (1) n > 2 (2) (1/10)^(n-1) < 0.1[/img] Do some work on the question stem first. Turn (1/10)^n into 1^n / 10^n, which is basically 1/10^n Turn 0.01 into 1/100, which is the equivalent of 1/10^2. So now the question stem says "i...

by magicalhat

Sat Jun 18, 2011 8:25 am
Forum: Data Sufficiency
Topic: inequalities
Replies: 7
Views: 1699

combinatorics and probability

how important are these topics for someone aiming for a 650 - 700? i've heard that they don't appear that much, but i really don't know... what has been the experience of the gmat experts?

by magicalhat

Sat Jun 18, 2011 8:24 am
Forum: GMAT Math
Topic: combinatorics and probability
Replies: 2
Views: 1844

A, imo.

cans wrote:What is the remainder when the positive integer n is divided by the positive integer k, where
k>1?
(1) n=(k+1)^3 (i.e. cube of (k+1))
(2) k=5

by magicalhat

Wed Jun 08, 2011 8:42 am
Forum: Data Sufficiency
Topic: remainder
Replies: 9
Views: 1673

yes, i'm confused, too. Hi GMATGuruNY, Could you please elaborate this? I am not clear with this statement. Since each envelope has the same probability of getting the correct letter and we have 4 envelopes total, we need to multiply by 4: 4 * 1/12 = 1/3. Hi GMATGuruNY, Could you please elaborate th...

by magicalhat

Wed Jun 08, 2011 8:37 am
Forum: Data Sufficiency
Topic: HARD PROB
Replies: 15
Views: 3192