Number Series Questions and Answers updated daily – Aptitude



275 Number Series Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Number Series online test. Number Series Questions with detailed description, explanation will help you to master the topic.

Number Series Questions

1. What number should come next ?

112, 135, 158, 181, _____



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Correct Ans:204
Explanation:
The given series is -- 112, 135, 158, 181
Consecutive numbers increases by 23
Following this pattern, the Missing Number should increase by 23 from the previous number.
When we add 23 to the last number (i.e 181) we get 181+23=204


2. What should come in place of _____ in the below number series?

112, 88, 64, 40, _____



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Correct Ans:16
Explanation:
The given series is -- 112, 88, 64, 40
Consecutive numbers decreases by 24
Following this pattern, the Missing Number should decrease by 24 from the previous number.
When we subtract 24 to the last number (i.e 40) we get 40--24=16


3. In the below given sequence, what should be the next number ?

112, 134, 156, 178, _____



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Correct Ans:200
Explanation:
The given series is -- 112, 134, 156, 178
Consecutive numbers increases by 22
Following this pattern, the Missing Number should increase by 22 from the previous number.
When we add 22 to the last number (i.e 178) we get 178+22=200


4. Output of a particular program follows the below pattern. Can you find the next number ?

112, 90, 68, 46, _____



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Correct Ans:24
Explanation:
The given series is -- 112, 90, 68, 46
Consecutive numbers decreases by 22
Following this pattern, the Missing Number should decrease by 22 from the previous number.
When we subtract 22 to the last number (i.e 46) we get 46--22=24


5. A Computer program gave the following output. Can you predict the next number that the computer program would generate as output ?

112, 127, 142, 157, _____



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Correct Ans:172
Explanation:
The given series is -- 112, 127, 142, 157
Consecutive numbers increases by 15
Following this pattern, the Missing Number should increase by 15 from the previous number.
When we add 15 to the last number (i.e 157) we get 157+15=172


6. A professor wrote the below series in classroom. He wants his students to find the next number. Can you solve it for the professor?

112, 91, 70, 49, _____



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Correct Ans:28
Explanation:
The given series is -- 112, 91, 70, 49
Consecutive numbers decreases by 21
Following this pattern, the Missing Number should decrease by 21 from the previous number.
When we subtract 21 to the last number (i.e 49) we get 49--21=28


7. Below Numbers follow a particular pattern. Can you find the next number ?

112, 131, 150, 169, _____



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Correct Ans:188
Explanation:
The given series is -- 112, 131, 150, 169
Consecutive numbers increases by 19
Following this pattern, the Missing Number should increase by 19 from the previous number.
When we add 19 to the last number (i.e 169) we get 169+19=188


8. In the given series, can you find the next number ?

112, 93, 74, 55, _____



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Correct Ans:36
Explanation:
The given series is -- 112, 93, 74, 55
Consecutive numbers decreases by 19
Following this pattern, the Missing Number should decrease by 19 from the previous number.
When we subtract 19 to the last number (i.e 55) we get 55--19=36


9. Fifth number is missing in the below series. Can you find the fifth number in the below series ?

112, 129, 146, 163, _____



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Correct Ans:180
Explanation:
The given series is -- 112, 129, 146, 163
Consecutive numbers increases by 17
Following this pattern, the Missing Number should increase by 17 from the previous number.
When we add 17 to the last number (i.e 163) we get 163+17=180


10. Can you find the the next number in the below series

112, 97, 82, 67, _____



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Correct Ans:52
Explanation:
The given series is -- 112, 97, 82, 67
Consecutive numbers decreases by 15
Following this pattern, the Missing Number should decrease by 15 from the previous number.
When we subtract 15 to the last number (i.e 67) we get 67--15=52


11. Find the next number in the the below series

112, 125, 138, 151, _____



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Correct Ans:164
Explanation:
The given series is -- 112, 125, 138, 151
Consecutive numbers increases by 13
Following this pattern, the Missing Number should increase by 13 from the previous number.
When we add 13 to the last number (i.e 151) we get 151+13=164


12. Which number should come in place of the missing Number ?

38, 60.5, 83, X , 128, 150.5



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Correct Ans:105.5
Explanation:
The given series is -- 38, 60.5, 83, X , 128, 150.5
Consecutive numbers increases by 22.5
Following this pattern, the Missing Number X should increase by 22.5 from the previous number.
When we add 22.5 to the number before X (i.e 83) we get 83+22.5=105.5


13. What should come in place of X in the below number series?

38, 59.3, 80.6, X , 123.2, 144.5



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Correct Ans:101.9
Explanation:
The given series is -- 38, 59.3, 80.6, X , 123.2, 144.5
Consecutive numbers increases by 21.3
Following this pattern, the Missing Number X should increase by 21.3 from the previous number.
When we add 21.3 to the number before X (i.e 80.6) we get 80.6+21.3=101.9


14. Output of a particular program follows the below pattern. Can you find the Missing number ?

38, 58.1, 78.2, X , 118.4, 138.5



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Correct Ans:98.3
Explanation:
The given series is -- 38, 58.1, 78.2, X , 118.4, 138.5
Consecutive numbers increases by 20.1
Following this pattern, the Missing Number X should increase by 20.1 from the previous number.
When we add 20.1 to the number before X (i.e 78.2) we get 78.2+20.1=98.3


15. In the below given sequence, what should be the Missing number ?

38, 57.7, 77.4, X , 116.8, 136.5



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Correct Ans:97.1
Explanation:
The given series is -- 38, 57.7, 77.4, X , 116.8, 136.5
Consecutive numbers increases by 19.7
Following this pattern, the Missing Number X should increase by 19.7 from the previous number.
When we add 19.7 to the number before X (i.e 77.4) we get 77.4+19.7=97.1


16. A Computer program gave the following output. Can you predict the Missing number in the computer output ?

38, 56.6, 75.2, X , 112.4, 131



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Correct Ans:93.8
Explanation:
The given series is -- 38, 56.6, 75.2, X , 112.4, 131
Consecutive numbers increases by 18.6
Following this pattern, the Missing Number X should increase by 18.6 from the previous number.
When we add 18.6 to the number before X (i.e 75.2) we get 75.2+18.6=93.8


17. A professor wrote down the below series in a classroom. He wants his students to find the Missing number. Can you solve it ?

38, 55.3, 72.6, X , 107.2, 124.5



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Correct Ans:89.9
Explanation:
The given series is -- 38, 55.3, 72.6, X , 107.2, 124.5
Consecutive numbers increases by 17.3
Following this pattern, the Missing Number X should increase by 17.3 from the previous number.
When we add 17.3 to the number before X (i.e 72.6) we get 72.6+17.3=89.9


18. Below Numbers follow a particular pattern. Can you find the Missing number in the below pattern?

38, 54.4, 70.8, X , 103.6, 120



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Correct Ans:87.2
Explanation:
The given series is -- 38, 54.4, 70.8, X , 103.6, 120
Consecutive numbers increases by 16.4
Following this pattern, the Missing Number X should increase by 16.4 from the previous number.
When we add 16.4 to the number before X (i.e 70.8) we get 70.8+16.4=87.2


19. In the given series, can you find the Missing number ?

38, 53.2, 68.4, X , 98.8, 114



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Correct Ans:83.6
Explanation:
The given series is -- 38, 53.2, 68.4, X , 98.8, 114
Consecutive numbers increases by 15.2
Following this pattern, the Missing Number X should increase by 15.2 from the previous number.
When we add 15.2 to the number before X (i.e 68.4) we get 68.4+15.2=83.6


20. Fourth number is missing in the below series. Can you find the Fourth number in the below series ?

38, 52.75, 67.5, X , 97, 111.75



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Correct Ans:82.25
Explanation:
The given series is -- 38, 52.75, 67.5, X , 97, 111.75
Consecutive numbers increases by 14.75
Following this pattern, the Missing Number X should increase by 14.75 from the previous number.
When we add 14.75 to the number before X (i.e 67.5) we get 67.5+14.75=82.25





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