11+ Entrance Verbal Reasoning: Number Sequences Questions and Answers

Question 1

Find the next number in this sequence: 3, 7, 11, 15, ...

Accepted Answer

19

Answer

The pattern in this sequence is to add 4 to the previous number to get the next one. 3 + 4 = 7; 7 + 4 = 11; 11 + 4 = 15. Therefore, the next number is 15 + 4 = 19.

Question 2

What is the missing number in the following sequence: 4, 9, 16, 25, ...?

Accepted Answer

36

Answer

This sequence consists of consecutive square numbers. 2x2=4, 3x3=9, 4x4=16, 5x5=25. The next number in the pattern is 6x6, which is 36.

Question 3

Find the next number in this series: 2, 5, 3, 6, 4, ...

Accepted Answer

7

Answer

The sequence follows an alternating pattern of 'add 3', then 'subtract 2'. 2 + 3 = 5; 5 - 2 = 3; 3 + 3 = 6; 6 - 2 = 4. The next step is to add 3, so 4 + 3 = 7.

Question 4

What number comes next in this sequence: 1, 20, 3, 18, 5, 16, ...?

Accepted Answer

7

Answer

There are two separate sequences interleaved here. The first sequence starts at 1 and increases by 2 (1, 3, 5, ...). The second sequence starts at 20 and decreases by 2 (20, 18, 16, ...). The missing number is the next one in the first sequence, which is 5 + 2 = 7.

Question 5

Which number completes this sequence: 50, 45, 39, 32, ...?

Accepted Answer

24

Answer

The pattern involves subtracting a number that increases by 1 each time. First, 5 is subtracted (50-5=45). Then, 6 is subtracted (45-6=39). Then, 7 is subtracted (39-7=32). The next step is to subtract 8, so 32 - 8 = 24.

11+ Practice Test

11+ Practice Test

11+ Entrance Verbal Reasoning: Number Sequences Questions and Answers