Description

This mock test of Test: Numbers for GMAT helps you for every GMAT entrance exam.
This contains 35 Multiple Choice Questions for GMAT Test: Numbers (mcq) to study with solutions a complete question bank.
The solved questions answers in this Test: Numbers quiz give you a good mix of easy questions and tough questions. GMAT
students definitely take this Test: Numbers exercise for a better result in the exam. You can find other Test: Numbers extra questions,
long questions & short questions for GMAT on EduRev as well by searching above.

QUESTION: 1

If x is an integer, which of the following must be an odd integer?

Solution:

QUESTION: 2

If xy ≠ 0, is x/y = 1?

(1) x^{2} = y^{2}

(2) xy > 0

Solution:

QUESTION: 3

The value of (9×10^{7})(9×10^{8}) is closest to which of the following?

Solution:

QUESTION: 4

The product of the units digit, the tens digit, and the hundreds digit of the positive integer m is 96. What is the units digit of m?

1) m is odd. ?

2) The hundreds digit of m is 8. ?

Solution:

QUESTION: 5

If m, p, and t are positive integers and m < p < t, is the product mpt an even integer?

1) t – p = p - m

2) t – m = 16

Solution:

QUESTION: 6

If x and y are positive integers, and x^{3}y^{4} = 2,000, which of the following is the value of xy?

Solution:

QUESTION: 7

If ab = 1, what is the value of (axb)(ayb)?

1) ax = by = 2

2) 2xy = 4

Solution:

QUESTION: 8

If positive integer x is a multiple of 6 and positive integer y is a multiple of 14, is xy a multiple of 105?

(1) x is a multiple of 9. ?

(2) y is a multiple of 25. ?

Solution:

QUESTION: 9

The sum of all the integers k such that –26 < k < 24 is

Solution:

QUESTION: 10

If a, b, c, and d are positive integers, is (a/b) (c/d) > c/b?

1) c > b

2) a > d

Solution:

QUESTION: 11

If *k*, *m*, and *p *are integers, is *k *– *m *– *p *odd?

1) *k *and *m *are even and *p *is odd.?

2) *k*, *m*, and *p *are consecutive integers.

Solution:

QUESTION: 12

Is *x*^{2} + *y*^{2} > 6?

1) (*x *+ *y*)^{2} > 6

2) *xy *= 2

Solution:

QUESTION: 13

The numbers *x *and *y *are three-digit positive integers, and *x *+ *y *is a four-digit integer. The tens digit of *x *equals 7 and the tens digit of *y *equals 5. If *x *< *y*, which of the following must be true?

I. The units digit of *x *+ *y *is greater than the units digit of either *x *or *y*.

II. The tens digit of *x *+ *y *equals 2.

III. The hundreds digit of *y *is at least 5.

Solution:

QUESTION: 14

If *n *is an integer and 100 < *n *< 200, what is the value of *n*?

1) n/36 is an odd integer.

2) n/45 is an even integer.

Solution:

QUESTION: 15

If *x *and *y *are positive integers and 1 + *x *+ *y *+ *xy *= 15, what is the value of *x *+ *y*?

Solution:

QUESTION: 16

If x and y are positive integers and 1 + x + y +xy = 21, what is the value of x?

1) y > 3

2) y = 6

Solution:

QUESTION: 17

What is the sum of a certain pair of consecutive odd integers?

1) At least one of the integers is negative.

2) At least one of the integers is positive.

Solution:

QUESTION: 18

If *x *and *y *are integers, is *x *+ *y *greater than 0?

1) *x *is greater than 0.

2) *y *is less than 1.

Solution:

QUESTION: 19

If x and y are consecutive even numbers, what is the sum of x and y?

1) x is negative.

2) y is non-positive.

Solution:

QUESTION: 20

If *a *and *b *are positive integers such that *a *– *b *and a/b are both even integers, which of the following must be an odd integer?

Solution:

QUESTION: 21

Is atleast one of x and z odd?

1) x + z = odd

2) x – z = odd

Solution:

QUESTION: 22

If x and z are integers, is atleast one of x and z odd?

1) x + z = odd

2) x – z = odd

Solution:

QUESTION: 23

What is the greatest common factor of the positive integers *j *and *k*?

(1) *k *= *j *+ 1?

(2) *jk *is divisible by 5.

Solution:

QUESTION: 24

If x and y are positive integers and y = √(9 −?x), what is the value of y?

1) x < 8

2) y > 1

Solution:

QUESTION: 25

If x and y are integers and y = √(9 −?x), what is the value of y?

1) x < 11

2) y > 0

Solution:

QUESTION: 26

In the decimal representation of x, where 0 < x < 1, is the tenths digit of x nonzero?

1) 16x is an integer. ?

2) 8x is an integer. ?

Solution:

QUESTION: 27

If x and z are integers, is at least one of them even?

1) x + z is even.

2) x – z is even.

Solution:

QUESTION: 28

What is the remainder when the two-digit, positive integer *x *is divided by 3?

1) The sum of the digits of *x *is 5.?

2) The remainder when *x *is divided by 9 is 5.

Solution:

QUESTION: 29

What is the remainder when the two-digit, positive integer *x *is divided by 9?

1) The sum of the digits of *x *is 5.?

2) The remainder when *x *is divided by 3 is 2.

Solution:

QUESTION: 30

A school administrator will assign each student in a group of *n *students to one of *m *classrooms. If 3 < *m *< 13 < *n*, is it possible to assign each of the *n *students to one of the *m *classrooms so that each classroom has the same number of students assigned to it?

1) It is possible to assign each of 3*n *students to one of *m *classrooms so that each classroom has the same number of students assigned to it. ?

2) It is possible to assign each of 13*n *students to one of *m *classrooms so that each classroom has the same number of students assigned to it. ?

Solution:

QUESTION: 31

What is the value of *x*?

(1) 5 < *x ^{2 }*< 10?

(2) *x *is an integer.

Solution:

QUESTION: 32

For any positive integer n, the sum of the first n positive integers equals [n(n+1)]/2. What is the sum of all the even integers be tween 99 and 301?

Solution:

QUESTION: 33

A positive integer n is said to be “prime-saturated” if the product of all the different positive prime factors of n is less than the square root of n. What is the greatest two-digit prime-saturated integer?

Solution:

QUESTION: 34

If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k?

1) The tens digit of k + 9 is 3.

2) The tens digit of k + 4 is 2.

Solution:

QUESTION: 35

If k is negative, which of the following must also be negative?

Solution:

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