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Permutation and Combination

You are currently browsing the articles from GMAT Question of the Day matching the category Permutation and Combination.

GMAT Question of the Day: Mixture and Solution

A 30% solution of barium chloride is mixed with 10 grams of water to form a 20% solotion. How many grams of original solution did we start with ?
A) 10
B) 15
C) 20
D) 25
E) 30

Written by Take GMAT Team on March 11th, 2010 with 28 comments.
Read more articles on Average difficult GMAT Questions and Correct Answer with Explanation and GMAT Difficulty level and GMAT Maths and GMAT Mixture and Solution and GMAT Problem Solving and GMAT Quantitative and GMAT Question of the Day and Permutation and Combination.

.1 ..2… 3…. 4….. 5…… 6……Breaking News

.1…2….3…. 4….. 5…… 6………………………Good News… TakeGMAT Team pleased to announce that now you will receive not 1, 2 or 3….Total six questions a day…….On the each interval of 4 hours. We can increase or decrease the frequency of questions depends on your feedback.
Topics includes
> Critical Resoning
> Sentence Correction
> Reading Comprehension
> Data Sufficiency
> Problem Solving
> PS/DS
We [...]

Written by Take GMAT Team on February 10th, 2010 with 36 comments.
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Mixture Percents Problem by Vibhuti

Three grades of milk are 1 percent, 2 percent and 3 percent fat by volume. If x gallons of 1 percent grade, y gallons of 2 percent grade and z gallons of 3 percent grade are mixed to give x+y+z gallons of 1.5 percent grade, what is x in terms of y and z?
A. y [...]

Written by vibz on December 1st, 2009 with 7 comments.
Read more articles on Correct Answer with Explanation and Difficult GMAT Questions and GMAT Average and GMAT Difficulty level and GMAT Maths and GMAT Mixture and Solution and GMAT Quantitative and GMAT Question of the Day and Percentage and Permutation and Combination.

GMAT Question of the Day : Permutation and Combination

In an examination there are three multiple choice questions and each questions has 4 choices. Number of sequences in which students can fail to get all answers correct ?
A) 11
B) 15
C) 63
D) 80
E) 83

Written by Take GMAT Team on January 11th, 2009 with 16 comments.
Read more articles on Average difficult GMAT Questions and Correct Answer with Explanation and GMAT Average and GMAT Difficulty level and GMAT Maths and GMAT Problem Solving and GMAT Quantitative and GMAT Question of the Day and Permutation and Combination.

GMAT Question of the Day: Permutation and Combination

The number of different arrangements that can be made with the letters of the word ”GRATITUDE” in which the T’s are together?
A) 9!*2!
B) 8!
C) 9!
D) 81*2!
E) None of these

Written by Take GMAT Team on January 10th, 2009 with 20 comments.
Read more articles on Average difficult GMAT Questions and GMAT Difficulty level and GMAT Maths and GMAT Problem Solving and GMAT Quantitative and GMAT Question of the Day and Permutation and Combination.

Mixture Question: A Vessel is Filled with a Liquid

A vessel is filled with a liquid in which 5 parts are milk and 3 parts are water. What fraction of mixture must be drawn off are replaced with water. So that the mixture may be half water and half milk.
a) 1/2
b) 1/3
c) 2/3
d) 1/5
e) 1/8

Written by Take GMAT Team on December 7th, 2008 with 18 comments.
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At a Dinner Party: GMAT Permutation and Combination

At a dinner party, 5 people are to be seated around a circular table. Two seating arrangements are considered different only when the positions of the people are different relative to each other. What is the total nummber of different possible seating arrangements for the group?
(A) 5
(B) 10
(C) 24
(D) 32
(E) 120

Written by Take GMAT Team on September 18th, 2008 with 33 comments.
Read more articles on Average difficult GMAT Questions and Correct Answer with Explanation and GMAT Average and GMAT Difficulty level and GMAT Maths and GMAT Problem Solving and GMAT Quantitative and GMAT Question of the Day and Permutation and Combination.

GMAT Question of the Day: Permutation and Combination

How many ways to choose a committee of 3 people from 4 couples so that no couple is chosen.
A) 36
B) 48
C) 210
D) 306
E) None of these

Written by Take GMAT Team on August 1st, 2008 with 10 comments.
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Permutation and Combination Question

Jake, Lena, Fred, John and Inna need to drive home from a party in a car that can seat 7 people. If only Inna or Jake can drive, how many seat allocations are possible?
a. 30
b. 42
c. 60
d. 120
e. 125

Written by illusions on July 14th, 2008 with 15 comments.
Read more articles on Average difficult GMAT Questions and Correct Answer with Explanation and GMAT Difficulty level and GMAT Maths and GMAT Problem Solving and GMAT Quantitative and GMAT Question of the Day and Permutation and Combination.

PS 5,5

From a group of 3 boys and 3 girls, 4 children are to be randomly selected. What is the probability that equal numbers of boys and girls will be selected?
Â
A. 1/10
B. 4/9
C. 1/2
D. 3/5
E. 2/3

Written by GHCV on October 12th, 2007 with 4 comments.
Read more articles on Average difficult GMAT Questions and Correct Answer with Explanation and GMAT Average and GMAT Difficulty level and GMAT Maths and GMAT Probability and GMAT Problem Solving and GMAT Quantitative and GMAT Question of the Day and Permutation and Combination.

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