Sets - GMAT Quantitative
Card 1 of 120
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →
Let
be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Let be the set of all perfect squares and perfect cubes between 1 and 100 inclusive. How many subsets does
have?
Tap to reveal answer
, which is a set of 12 elements. A set this size has
subsets.
, which is a set of 12 elements. A set this size has
subsets.
← Didn't Know|Knew It →

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number
were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If
, then
would be placed in Region I.
Statement 2: If
, then
would be placed in Region I.

Examine the above diagram, which shows a Venn diagram representing the sets of real numbers.
If real number were to be placed in its correct region in the diagram, which one would it be - I, II, III, IV, or V?
Statement 1: If , then
would be placed in Region I.
Statement 2: If , then
would be placed in Region I.
Tap to reveal answer
Region I comprises the natural numbers - 
From Statement 1 alone,
is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,

could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone,
is the sum of a natural number and 7 - that is,

must be a natural number and it must be in Region I.
Region I comprises the natural numbers -
From Statement 1 alone, is a natural number; since
, it follows that
is the difference of a natural number and 7 - that is,
could be in any of three regions - I, II, or III.
Conversely, from Statement 2 alone, is the sum of a natural number and 7 - that is,
must be a natural number and it must be in Region I.
← Didn't Know|Knew It →
Given that
and
, is it true that positive integer
?
Statement 1: The last digit of
is a 0.
Statement 2: The second-to-last digit of
is 5.
Given that and
, is it true that positive integer
?
Statement 1: The last digit of is a 0.
Statement 2: The second-to-last digit of is 5.
Tap to reveal answer
and
are the sets of positive multiples of 4 and 5, respectively. For a number to be in both sets, the number must be divisible by both 4 and 5. This happens if and only if it is also divisible by
.
The elements of
are precisely the mulitples of 20:

All of the numbers end in 0 and have 2, 4, 6, 8,or 0 as their second-to-last digit.
Statement 1 does not, by itself, prove or disprove that
, since there are numbers like 10 and 30 that do not fall in this set. But none of the elements of
have 5 as their second-to-last digit, so Statement 2 proves
to be false.
and
are the sets of positive multiples of 4 and 5, respectively. For a number to be in both sets, the number must be divisible by both 4 and 5. This happens if and only if it is also divisible by
.
The elements of are precisely the mulitples of 20:
All of the numbers end in 0 and have 2, 4, 6, 8,or 0 as their second-to-last digit.
Statement 1 does not, by itself, prove or disprove that , since there are numbers like 10 and 30 that do not fall in this set. But none of the elements of
have 5 as their second-to-last digit, so Statement 2 proves
to be false.
← Didn't Know|Knew It →
Define sets
as follows:


What is
?
Statement 1: 
Statement 2:
comprises ten elements, all of which are positive integers.
Define sets as follows:
What is ?
Statement 1:
Statement 2: comprises ten elements, all of which are positive integers.
Tap to reveal answer

is the complement of
- that is, the set of all elements in the universal set
that are not in
. To find
given
, we need to know the elements in
. Statement 1 gives us this information; Statement 2 does not.
is the complement of
- that is, the set of all elements in the universal set
that are not in
. To find
given
, we need to know the elements in
. Statement 1 gives us this information; Statement 2 does not.
← Didn't Know|Knew It →
Given that
and
, is it true that positive integer
?
Statement 1: The last digit of
is a 0.
Statement 2: The second-to-last digit of
is 5.
Given that and
, is it true that positive integer
?
Statement 1: The last digit of is a 0.
Statement 2: The second-to-last digit of is 5.
Tap to reveal answer
and
are the sets of positive multiples of 4 and 5, respectively. For a number to be in both sets, the number must be divisible by both 4 and 5. This happens if and only if it is also divisible by
.
The elements of
are precisely the mulitples of 20:

All of the numbers end in 0 and have 2, 4, 6, 8,or 0 as their second-to-last digit.
Statement 1 does not, by itself, prove or disprove that
, since there are numbers like 10 and 30 that do not fall in this set. But none of the elements of
have 5 as their second-to-last digit, so Statement 2 proves
to be false.
and
are the sets of positive multiples of 4 and 5, respectively. For a number to be in both sets, the number must be divisible by both 4 and 5. This happens if and only if it is also divisible by
.
The elements of are precisely the mulitples of 20:
All of the numbers end in 0 and have 2, 4, 6, 8,or 0 as their second-to-last digit.
Statement 1 does not, by itself, prove or disprove that , since there are numbers like 10 and 30 that do not fall in this set. But none of the elements of
have 5 as their second-to-last digit, so Statement 2 proves
to be false.
← Didn't Know|Knew It →
Define sets
as follows:


What is
?
Statement 1: 
Statement 2:
comprises ten elements, all of which are positive integers.
Define sets as follows:
What is ?
Statement 1:
Statement 2: comprises ten elements, all of which are positive integers.
Tap to reveal answer

is the complement of
- that is, the set of all elements in the universal set
that are not in
. To find
given
, we need to know the elements in
. Statement 1 gives us this information; Statement 2 does not.
is the complement of
- that is, the set of all elements in the universal set
that are not in
. To find
given
, we need to know the elements in
. Statement 1 gives us this information; Statement 2 does not.
← Didn't Know|Knew It →