11+ Entrance Verbal Reasoning: Number Sequences Questions and Answers — Questions and Answers
Question 1: Find the next number in this sequence: 3, 7, 11, 15, ...
- 18
- 19 (Correct answer)
- 20
- 17
Correct answer: 19
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, ...?
- 30
- 34
- 35
- 36 (Correct answer)
Correct answer: 36
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, ...
- 5
- 8
- 7 (Correct answer)
- 6
Correct answer: 7
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, ...?
- 7 (Correct answer)
- 14
- 6
- 15
Correct answer: 7
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, ...?
- 26
- 24 (Correct answer)
- 25
- 27
Correct answer: 24
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.
Question 6: Find the next number in the sequence: 3, 7, 15, 31, ...
- 61
- 62
- 63 (Correct answer)
- 64
Correct answer: 63
The rule for this sequence is to multiply the previous number by 2 and then add 1. For example, (3 x 2) + 1 = 7. Then, (7 x 2) + 1 = 15. Following this, (15 x 2) + 1 = 31. The final step is (31 x 2) + 1 = 63.
11+ Entrance Verbal Reasoning: Number Sequences Questions and Answers
Find the next number in this sequence: 3, 7, 11, 15, ...