Search found 41 matches


can we expect such a question on the gmat ?

by mariofelixpasku

Wed Mar 20, 2013 2:20 pm
Forum: Problem Solving
Topic: geometry question
Replies: 6
Views: 19841

is there any shorter solution? it seems as if one would need more than 2 minutes to figure all this out ...

by mariofelixpasku

Wed Mar 20, 2013 11:50 am
Forum: Data Sufficiency
Topic: DS | Remainder when (x^2 + y^2) divided by 5 ?
Replies: 8
Views: 1913

e

can someone explain the answer to the first question?

by mariofelixpasku

Fri Mar 15, 2013 6:35 am
Forum: Sentence Correction
Topic: e
Replies: 0
Views: 788

Is the perimeter of rectangle R greater than 28? (1) Area of rectangle R is 50. (2) Diagonal of rectangle R is 10. Statement 1: LW = 50. Let's assume that the perimeter = 28. Then 2(L+W) = 28, L+W=14, and W=14-L. Substituting into LW=50, we get: L(14-L) = 50. 14L - L^2 -50 = 0. L^2 - 14L + 50 = 0. ...

by mariofelixpasku

Thu Mar 14, 2013 3:34 pm
Forum: Data Sufficiency
Topic: rectangle R greater
Replies: 35
Views: 16382

20 - R + 1/2 * R = 12 because we want to maximize R

=> B

by mariofelixpasku

Thu Mar 14, 2013 10:53 am
Forum: Problem Solving
Topic: Percent
Replies: 3
Views: 1149

does the gmat come up with such questions?

by mariofelixpasku

Wed Mar 13, 2013 10:55 am
Forum: Problem Solving
Topic: Combinations
Replies: 4
Views: 1052

simplest way as it doesnt say cannot be determined, insert n=0 and you get the remainder = 4

by mariofelixpasku

Thu Mar 07, 2013 1:40 pm
Forum: Problem Solving
Topic: PS2
Replies: 11
Views: 8164

Working Problem (need help)

Working alone Thomas can do a job in 8 hours longer than if both Thomas and Kevin worked together. If Kevin worked alone, he would take 4.5 hours more to complete the job than when he works with Thomas. Which of the following could be the amount of hours if they work together? a) 4 b) 6 c) 8 d) 12 e...

by mariofelixpasku

Thu Oct 25, 2012 4:00 pm
Forum: Problem Solving
Topic: Working Problem (need help)
Replies: 1
Views: 1506

Sets

If 70 children go to the cinema for the afternoon and 40 watch Cinderella and 50 watch The Little Mermaid, how many watch both Cinderella and The Little Mermaid?

by mariofelixpasku

Tue Oct 23, 2012 12:25 pm
Forum: Problem Solving
Topic: Sets
Replies: 1
Views: 1006

easier way:

(4-x)/2 = x/4

solve i and you get 8/3 for x

by mariofelixpasku

Tue Oct 23, 2012 7:29 am
Forum: Problem Solving
Topic: Fraction
Replies: 4
Views: 1320

same as i thought it had to be. but the solution says 5/36036.

by mariofelixpasku

Mon Oct 22, 2012 6:10 pm
Forum: Problem Solving
Topic: probs.
Replies: 2
Views: 1041

probs.

There are 15 articles in a box, 5 of which are colored. If 5 articles are selected at random, what is the probability that one of the articles is not colored?

by mariofelixpasku

Mon Oct 22, 2012 11:43 am
Forum: Problem Solving
Topic: probs.
Replies: 2
Views: 1041

Probabilities

On an examination there are 25 different topics and only 3 questions. A student did not have enough time to prepare for 10 of the topics. What is the probability that he will be able to answer all three questions on the exam?

A: 91/120

by mariofelixpasku

Mon Oct 22, 2012 11:29 am
Forum: Problem Solving
Topic: Probabilities
Replies: 1
Views: 852

prime numbers

If 17! + 2 ≤ K ≤ 17! + 17, is K ever a prime number?

by mariofelixpasku

Sat Oct 20, 2012 8:44 am
Forum: Problem Solving
Topic: prime numbers
Replies: 1
Views: 947
by mariofelixpasku

Sat Oct 20, 2012 6:15 am
Forum: Problem Solving
Topic: Algebra (hard one in my opinion)
Replies: 2
Views: 842