If t is a non negative integer, is integer k prime?
(1) k=13t + 13
(2) k=17! + 13
Source->Self-Made![]()
(1) k=13t + 13
(2) k=17! + 13
Source->Self-Made
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If t is a non negative integer, is integer k prime?
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If N is a positive 3-digit number, is N prime?
If N is a positive 3-digit number, is N prime?
(1)The hundreds digit of K is the sum of the tens and units digit. Tens and units digits are equal.
(2)N is odd.
Source->Self-Made![]()
(1)The hundreds digit of K is the sum of the tens and units digit. Tens and units digits are equal.
(2)N is odd.
Source->Self-Made
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When a positive integer n has 4 different factors, n=?
When a positive integer n has 4 different factors, n=?
1) n has only 1 prime factor
2) n<10![]()
1) n has only 1 prime factor
2) n<10
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There are a bunch of buildings and their building numbers are all even
There are a bunch of buildings and their building numbers are all even numbers. If the numbers are 312 between 590 inclusive, what is the number of buildings?
A. 139
B. 140
C. 141
D. 142
E. 143![]()
A. 139
B. 140
C. 141
D. 142
E. 143
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A company makes and sells two products, A and B.
This topic have been merged with: http://gmatclub.com/forum/topic-217551.html![]()
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A company makes and sells two products, A, and B.
A company makes and sells two products, A, and B. The costs per unit of making and selling A and B are $8.00 and $9.50, respectively, and the selling prices per unit of A and B are $10.00 and $12.00, respectively. In one month the company sold a total of 834 units of these products. Was the total profit on these items more than $2,000?
(1) During the month, more units of A than units of B were sold.
(2) During the month, at least 100 units of B were sold.![]()
(1) During the month, more units of A than units of B were sold.
(2) During the month, at least 100 units of B were sold.
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if N = 5^5 * 10^5 * 15^5 * 20^5*25^5 , how many trailing zeros?
if N = 5^5 * 10^5 * 15^5 * 20^5*25^5 , how many trailing zeros are at the end of N?
1) 5
2) 7
3) 6
4) 10
5) 15![]()
1) 5
2) 7
3) 6
4) 10
5) 15
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IF N = 5*10*15*20*25*30*35*40*45*50 , trailing zero's??
How many trailing zero's are in N = 5*10*15*20*25**30*35*40*45*50?
1) 5
2)6
3)7
4)8
5)10![]()
1) 5
2)6
3)7
4)8
5)10
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What is the remainder when integer n is divided by 3?
What is the remainder when integer n is divided by 3?
(1) When 8n is divided by 3, the remainder is odd.
(2) When 5n is divided by 3, the remainder is odd.![]()
(1) When 8n is divided by 3, the remainder is odd.
(2) When 5n is divided by 3, the remainder is odd.
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What is the value, rounded to the nearest integer, of 3a + 4 divided
What is the value, rounded to the nearest integer, of 3a + 4 divided by a ?
(1) a > 8
(2) 10 > a > 7![]()
(1) a > 8
(2) 10 > a > 7
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When integer b is divided by 13, the remainder is 6. Which of the foll
When integer b is divided by 13, the remainder is 6. Which of the following cannot be an integer?
A. 13b/12
B. b/26
C. b/17
D. b/12
E. b/6![]()
A. 13b/12
B. b/26
C. b/17
D. b/12
E. b/6
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What is the greatest value of integer n such that 4^n is a factor of 2
What is the greatest value of integer n such that 4^n is a factor of 26! ?
A. 6
B. 9
C. 10
D. 11
E. 12![]()
A. 6
B. 9
C. 10
D. 11
E. 12
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If n is an integer, is the sum of all of n's divisors, which are not
If n is an integer, is the sum of all of n's divisors, which are not equal to n or equal to one, greater than 100?
(1) 3 and 96 are divisors of n that are neither equal to n nor equal to one.
(2) 3 and 97 are divisors of n that are neither equal to n nor equal to one.![]()
(1) 3 and 96 are divisors of n that are neither equal to n nor equal to one.
(2) 3 and 97 are divisors of n that are neither equal to n nor equal to one.
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Charissa and Radina are waiting in line to purchase tickets to a footb
Charissa and Radina are waiting in line to purchase tickets to a football game. If each person occupies 2 linear feet of space in the line, how long is the line?
(1) There are three people in front of Charissa and three people behind Radina.
(2) Two people are standing between Charissa and Radina.![]()
(1) There are three people in front of Charissa and three people behind Radina.
(2) Two people are standing between Charissa and Radina.
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The results from an experiment generated data with a mean of 36 and a
The results from an experiment generated data with a mean of 36 and a standard deviation of 5. Which of the following values is more than 3.5 standard deviations from the mean?
A. 18.0
B. 22.5
C. 41.0
D. 43.5
E. 53.5![]()
A. 18.0
B. 22.5
C. 41.0
D. 43.5
E. 53.5
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A certain data set has n numbers, an average (arithmetic mean) of 5, a
A certain data set has n numbers, an average (arithmetic mean) of 5, and a standard deviation of s. If n and s are positive, which of the following pairs of numbers, when added to the data set, must result in a set with n + 2 numbers and a standard deviation less than s?
A. -5 and 0
B. 0 and 0
C. 0 and 5
D. 0 and 10
E. 5 and 5![]()
A. -5 and 0
B. 0 and 0
C. 0 and 5
D. 0 and 10
E. 5 and 5
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Which of the following sets has the smallest standard deviation?
Which of the following sets has the smallest standard deviation?
A. {2, 2, 5, 8, 8}
B. {3, 4, 5, 6, 7}
C. {1, 3, 5, 7, 9}
D. {3, 3, 5, 7, 7}
E. {0, 4, 5, 6, 10}![]()
A. {2, 2, 5, 8, 8}
B. {3, 4, 5, 6, 7}
C. {1, 3, 5, 7, 9}
D. {3, 3, 5, 7, 7}
E. {0, 4, 5, 6, 10}
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how many trailing zero's in N = (5^5*10^5*15^5*20^5*25^5*30^5*35^5*40)
how many trailing zero's in N = (5^5*10^5*15^5*20^5*25^5*30^5*35^5*40^5*45^5*50^5?
1) 30
2) 60
3)40
4)45
5)53![]()
1) 30
2) 60
3)40
4)45
5)53
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A sequence is defined by sn=(sn11)(sn2)sn=(sn11)(sn2) for n > 2,
This topic have been merged with: http://gmatclub.com/forum/topic-209262.html![]()
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"You were a quarter of my age when I was twice of your present age"
"You were a quarter of my age when I was twice of your present age", said A to B. "5 years from now, our ages will add up to 45. How old was I, when you were born?"
A.10
B.15
C.20
D.25
E.22![]()
A.10
B.15
C.20
D.25
E.22
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