# Number Series – Logical Reasoning Questions and Answers

Number series – Logical Reasoning Questions and Answers is about the missing number series that you can expect for Competitive Examination.

Number Series – Logical Reasoning Questions and Answers
Missing Number Series Questions and Answers for Competitive Examination

1. Find the missing number: 5, 8, 7, 10, 9, 12, —-
Explanation: Consider two series 5, 7, 9, ——– and 8, 10, 12, ————
2 is added in each series.
2. What number should come next? 1, 8, 27, 64, ———
Explanation: It is the cube of 1, 2, 3, 4, 5 ——————-
3. What number should come next? 3, 1, 5, 3, 7, ——–
Explanation: First 2 is subtracted then 4 is added.
4. What number should come next? 32, 30, 32, 28, 32, ——–
Explanation: 32 remain same then 2 is subtracted.
5. What number should come next? 2, 5, 10, 17, 26, ——–
Explanation: Add 3, 5, 7, 9 and 11 respectively.
6. What number should come next? 4, 8, 24, 96, ——
Explanation: 4 x 2 = 8, 8 x 3 = 24, 24 x 4 = 96, 96 x 5 = 480
7. What number should come next? 2, 10, 17, 23, 28, —–
Explanation: Add 8, 7, 6, 5, 4 respectively
8. What number should come next? 4, 6, 8, 12, 12, 18, 16, ——
Explanation: Consider 2 series 4, 8, 12, 16, ——- and 6, 12, 18, ——-
Increased by 4 and 6 respectively.
9. What number should come next? 1, 9, 25, 49, ——
Explanation: It is the square of the numbers 1, 3, 5, 7, 9 ———–
10. What number should come next? 50, 40, 32, 26, ——-
Explanation: Decreased by 10, 8, 6, 4 ———
11. What number should come next? 2, 3, 5, 7, 11, ———-
Explanation: It is a series of prime numbers.
12. What number should come next? 1, 4, 16, 64, 256, ——-
Explanation: It is a series formed by the multiplication with 4.
1 x 4 = 4, 4 x 4 = 16, 16 x 4 = 64, 64 x 4 = 256, 256 x 4 = 1024
13. What number should come next? 5, 10, 20, 40, 80, ——-