Free PSEE Number Series Question and Answers 1

Question 1

Think about the subsequent series: 23, …, 31, 37.
What number is missing?

Accepted Answer

29

Answer

The sequence 23, ..., 31, 37 consists of prime numbers. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. The prime number that comes directly after 23 and before 31 is 29. Therefore, 29 is the missing number in the sequence.

Question 2

Think about sequences 26, 24, 20, and 14.
What figure should come after that?

Accepted Answer

6

Answer

Analyze the differences between consecutive numbers: 26 - 24 = 2, 24 - 20 = 4, 20 - 14 = 6. The differences are increasing by 2 each time (2, 4, 6). Following this pattern, the next difference should be 8. Subtracting 8 from the last number in the sequence gives 14 - 8 = 6. So, 6 is the next figure.

Question 3

Think about the sequences 5, 6, 11, and 17.
What figure should come after that?

Accepted Answer

28

Answer

This sequence follows a pattern similar to the Fibonacci sequence, where each number is the sum of the two preceding numbers. Starting with 5 and 6: 5 + 6 = 11, and 6 + 11 = 17. Following this rule, the next number in the sequence will be the sum of the last two numbers: 11 + 17 = 28. Therefore, 28 is the next figure.

Question 4

Think about sequences 3, 6, 11, and 18.
What figure should come after that?

Accepted Answer

27

Answer

Examine the differences between consecutive numbers: 6 - 3 = 3, 11 - 6 = 5, 18 - 11 = 7. The differences are consecutive odd numbers (3, 5, 7). Following this pattern, the next difference should be 9. Adding 9 to the last number in the sequence gives 18 + 9 = 27. So, 27 is the next figure.

Question 5

Think about the sequences 6, 12, 24, and 48.
What figure should come after that?

Accepted Answer

96

Answer

This is a geometric sequence where each number is obtained by multiplying the previous number by 2. Starting with 6: 6 * 2 = 12, 12 * 2 = 24, and 24 * 2 = 48. Following this pattern, the next number in the sequence will be 48 * 2 = 96. Therefore, 96 is the next figure.

PSEE - Public Service Entrance Exam Practice Test

PSEE - Public Service Entrance Exam Practice Test

Free PSEE Number Series Question and Answers 1