Quantitative Reasoning — Number Patterns & Sequences
This is the real Level 1 question set — 20 questions, free, no account needed.
Tap a question to check your answer and read the explanation.
1. Continue the sequence: 1, 3, 5, 7, ___.
A. 8
B. 9
C. 10
D. 11
Explanation: These are odd numbers increasing by 2 each time (1+2=3, 3+2=5, 5+2=7), so the next number is 7+2=9.
2. Chika is stacking eggs in her tray in a pattern: 4, 8, 12, ___, 20. What number is missing?
A. 14
B. 15
C. 16
D. 18
Explanation: The numbers increase by 4 each time (4, 8, 12, 16, 20), so the missing number is 16.
3. Tunde doubles the number of seeds he plants every week: 2, 4, 8, 16, ___. How many seeds will he plant next?
A. 24
B. 28
C. 30
D. 32
Explanation: Each number is double the one before it (2×2=4, 4×2=8, 8×2=16), so the next number is 16×2=32.
4. Chidinma is arranging oranges in her mother's shop in this pattern: 3, 6, 9, 12, ___. What is the next number?
A. 13
B. 14
C. 15
D. 16
Explanation: The sequence increases by 3 each time (3, 6, 9, 12). Adding 3 to 12 gives 15.
5. A trader at Ariaria market counts her bags of rice like this: 40, 35, 30, 25, ___. What number comes next?
A. 20
B. 22
C. 18
D. 24
Explanation: The sequence decreases by 5 each time (40, 35, 30, 25). Subtracting 5 from 25 gives 20.
6. A farmer harvests yams and records them like this: 100, 90, 80, 70, ___. What is the next number?
A. 50
B. 55
C. 60
D. 65
Explanation: The numbers decrease by 10 each time (100, 90, 80, 70). Subtracting 10 from 70 gives 60.
7. A basket has some mangoes and they are removed in this pattern: 50, 45, 40, ___, 30. What is the missing number?
A. 32
B. 33
C. 34
D. 35
Explanation: The numbers decrease by 5 each time (50, 45, 40, 35, 30), so the missing number is 35.
8. Look at this pattern of numbers: 2, 4, 8, 16, ___. What is the next number in the sequence?
A. 24
B. 28
C. 32
D. 20
Explanation: Each number is multiplied by 2 to get the next number (2×2=4, 4×2=8, 8×2=16). So 16×2=32.
9. Musa is counting the number of buckets of water he fetches each day: 3, 6, 9, 12, ___. What comes next?
A. 13
B. 14
C. 15
D. 16
Explanation: Each number increases by 3 (3+3=6, 6+3=9, 9+3=12), so the next number is 12+3=15.
10. A trader had 100 oranges and sold them in groups so that her stock reduced this way: 100, 90, 80, 70, ___. How many oranges were left after the next sale?
A. 55
B. 60
C. 65
D. 70
Explanation: The stock reduces by 10 each time (100-10=90, 90-10=80, 80-10=70), so the next number is 70-10=60.
11. Look at this sequence of numbers: 1, 3, 6, 10, ___. What is the next number in the pattern?
A. 13
B. 14
C. 15
D. 16
Explanation: The difference between the numbers increases by 1 each time: +2, +3, +4, so the next difference is +5. 10 + 5 = 15.
12. Ngozi's school population has been growing steadily: 200, 220, 240, 260, ___. What is the next number in the sequence?
A. 270
B. 280
C. 290
D. 300
Explanation: The numbers increase by 20 each time (200, 220, 240, 260). Adding 20 to 260 gives 280.
13. Musa saves money every week in this order: ₦50, ₦60, ₦70, ₦80, ___. How much will he save next?
A. ₦85
B. ₦90
C. ₦95
D. ₦100
Explanation: The amount increases by ₦10 each week (50, 60, 70, 80). Adding 10 to 80 gives 90.
14. Study this sequence carefully: 1, 2, 4, 7, 11, ___. What number should come next?
A. 14
B. 15
C. 16
D. 13
Explanation: The gaps between numbers increase by 1 each time: +1, +2, +3, +4, so the next gap is +5. 11 + 5 = 16.
15. Study this number pattern: 2, 5, 8, 11, 14, ___. What comes next?
A. 16
B. 17
C. 18
D. 15
Explanation: The sequence increases by 3 each time (2, 5, 8, 11, 14). Adding 3 to 14 gives 17.
16. Study the sequence: 2, 4, 6, 8, ___. What is the next number?
A. 9
B. 10
C. 11
D. 12
Explanation: The numbers increase by 2 each time (2+2=4, 4+2=6, 6+2=8), so the next number is 8+2=10.
17. Ada is arranging her ₦5 coins in a pattern: 5, 10, 15, 20, ___. What is the next number in the pattern?
A. 22
B. 23
C. 24
D. 25
Explanation: Each number increases by 5 (5+5=10, 10+5=15, 15+5=20), so the next number is 20+5=25.
18. Find the missing number in the sequence: 10, 20, ___, 40, 50.
A. 25
B. 30
C. 35
D. 45
Explanation: The numbers increase by 10 each time, so the missing number between 20 and 40 must be 30.
19. Find the missing number in this sequence: 5, 10, ___, 20, 25.
A. 12
B. 14
C. 15
D. 17
Explanation: The sequence increases by 5 each time (5, 10, 15, 20, 25). The missing number is 15.
20. Find the missing number: 30, 27, 24, ___, 18.
A. 19
B. 20
C. 21
D. 22
Explanation: The numbers decrease by 3 each time (30, 27, 24, 21, 18), so the missing number is 21.
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