Search found 30 matches


700+

If n is a multiple of 5 and n=p^2q, where p and q are prime numbers, which of the following must be a multiple of 25?

a. p^2
b. q^2
c. pq
d. p^2q^2
e. p^3q


OA - d

by deepak123gmat

Sat Nov 13, 2010 9:57 pm
Forum: Problem Solving
Topic: 700+
Replies: 2
Views: 765

700+

Is x a negative number?

(1) x2 is a positive number.

(2) x × |y| is not a positive number.


OA - E

by deepak123gmat

Thu Nov 11, 2010 9:56 am
Forum: Data Sufficiency
Topic: 700+
Replies: 4
Views: 895

Probability

Tanya prepared 4 different letters to be sent to 4 different addresses. For each letter, she prepared an envelope with its correct address. If 4 letters are to be put into 4 envelope at random, what is the probobility that only one letter will be put into the envelope with its correct address. A. 1/...

by deepak123gmat

Wed Nov 03, 2010 4:02 am
Forum: Problem Solving
Topic: Probability
Replies: 5
Views: 1501

700+

Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient. Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective. Dr. A: The studies must have been faulty because the vaccine is worth...

by deepak123gmat

Thu Oct 14, 2010 3:31 am
Forum: Critical Reasoning
Topic: 700+
Replies: 1
Views: 1125

700+

According to a study by the Carnegie Foundation for the Advancement of Teaching, companies in the United States are providing job training and general education for nearly eight million people, about equivalent to the enrollment of the nation’s four-year colleges and universities. (A) equivalent t...

by deepak123gmat

Tue Oct 12, 2010 11:07 am
Forum: Sentence Correction
Topic: 700+
Replies: 2
Views: 846

Modifier

A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care. (A) A substance derived from the Madagas...

by deepak123gmat

Tue Oct 12, 2010 10:51 am
Forum: Sentence Correction
Topic: Modifier
Replies: 12
Views: 1437

Gr8 Kartik. that was really wow.
When you people say GMAT prep, you refer to which gmat prep?
Becoz i have two different GMAT prep one with 4 tests and one with 2 tests(downloaded from MBA.com)

Please let me know.


How many integers between 1 and 1021 are such that the sum of their digits is 2? between 1 and 10 - one number i.e. 2 between 11 and 20 - two numbers i.e. 11 and 20 between 21 and 30 - one number i.e. 29 (careful sum of digits is 2) and so on... Between 1 and 100 - 11 numbers between 101 and 200 - 1...

by deepak123gmat

Sat Oct 09, 2010 12:39 am
Forum: Problem Solving
Topic: Counting - how?
Replies: 7
Views: 3747

Sorry, guys.
i assumed the other way.

by deepak123gmat

Fri Oct 08, 2010 11:30 pm
Forum: Data Sufficiency
Topic: DS: Absolute signs
Replies: 6
Views: 1174

If x < p < q < y, is lq - xl < lq - yl ? (1) lp - xl < lp - yl (2) lq - xl < lp - yl lq - xl < lq - yl => q- x< y- q => 2*q < y +x 2. lq - xl < lp - yl => q-x < y- p => q+p < y +x If y+x is greater than q+p then then it y+x is always greater than 2*q (as q is greater than p) unless they are fraction...

by deepak123gmat

Fri Oct 08, 2010 11:21 pm
Forum: Data Sufficiency
Topic: DS: Absolute signs
Replies: 6
Views: 1174

DANJUMA what's OA?

by deepak123gmat

Fri Oct 08, 2010 12:06 pm
Forum: Data Sufficiency
Topic: Probability
Replies: 4
Views: 909

yep. OA is D
thanks folks

by deepak123gmat

Fri Oct 08, 2010 11:43 am
Forum: Data Sufficiency
Topic: Mean and standard deviation
Replies: 3
Views: 901

2) x^y = y^x and x > y

is true only for x = 4 and y=2.

If you keep on increasing values of x and y. then y^x becomes bigger than x^y.
Just input these values in x^4 - y^4 and you will get 240.

by deepak123gmat

Fri Oct 08, 2010 6:28 am
Forum: Data Sufficiency
Topic: Platinum GMAT: Qn
Replies: 5
Views: 1268

Mean and standard deviation

The lifetime of all the batteries produced by a certain company in a year have a distribution that is symmetric about the mean m. If the distribution has a standard deviation of d, what percentage of the distribution is greater than m+d? 1) 68% of the distribution lies in the interval from m-d to m+...

by deepak123gmat

Fri Oct 08, 2010 6:06 am
Forum: Data Sufficiency
Topic: Mean and standard deviation
Replies: 3
Views: 901

Sorry, i meant to say 12.30 Miami time.

by deepak123gmat

Fri Oct 08, 2010 6:04 am
Forum: Problem Solving
Topic: Speed & Time: A motorist drives..
Replies: 3
Views: 2057