Number series is the very important part of Reasoning topics. In this post you will learn or practice, the examples of Number Series Difficult Questions with solution. It will help to understand better what type of Difficult Number Series Reasoning Questions are asked in UPSC level competitive exam. Number series Questions is a single pair or a group of series which is followed by the combination of letters and numbers. So you are required to identify this pattern as well as find the missing term or the wrong tern in a given series. Lets understand examples of Number Series Reasoning Questions and answers

Examples Of Number Series Difficult Questions With Solution
In each of the following Number Series Difficult Questions is given with one missing term. Choose the correct alternative from the given one that will complete the series.
Q-1. Series supporting a square cube?
1, 2, 6, 33 , 49, ?
(A) 74
(B) 124
(C) 176
(D) 174
[showhide type="links1" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (D) 174 Solution:[/showhide]
Q-2. Series supported decimal number- then generally its solution starts with 5 or 1.5 In most of the cases
12, 6.5, 7.5, 12.75, ?
(A) 27.75
(B) 27.50
(C) 38.25
(D) 26.75
[showhide type="links2" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (B) 27.50 Solution: Series supported multiplication- if suddenly number increase in bulk then we use this method[/showhide]
Q-3. Find the missing number and complete the series.
1, 10, 28, 91, 370, ?
(A) 1070
(B) 1850
(C) 1855
(D) 1775
[showhide type="links3" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (C) 1855 Solution: Series supported multiplication- if suddenly number increase in bulk then we use this method[/showhide]
Q-4. Find the missing number from the given series.
70, 40, 50, 90, 200, ?
(A) 525
(B) 500
(C) 425
(D) 520
[showhide type="links4" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (A) 525 Solution: Half pattern series- every second number is simply 1/2 first number and third number is simply near about second number then this sort of series always start with multiplication of 0.5[/showhide]
Q-5. Find the missing number and complete the series.
12, 12, 18, 45, 180, ?
(A) 540
(B) 1070
(C) 920
(D) 1080
[showhide type="links5" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (D) 1080 Solution: completely divisible series- if the following number is totally divisible by the previous number then we use this series.[/showhide]
Number Series Difficult Questions For Competitive Exam
Q-6. Find the missing number from the given series.
2, 10, 30, 38, 130 ?
(A) 218
(B) 216
(C) 222
(D) 92
[showhide type="links6" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (C) 222 Solution: Different series[/showhide]
Q-7. Complete the given series
3125, 256, ?, 4, 1
(A) 27
(B) 64
(C) 11
(D) 25
[showhide type="links7" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (A) Solution:[/showhide]
Q-8. Find the correct number followed by series
2, 3, 6, 18, 108, ?
(A) 1938
(B) 1944
(C) 970
(D) 1954
[showhide type="links8" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (B) 1944 Solution: 2 x 3 =6 3 x 6 =18 6 x 18 = 108 18 x 108 =1944 [/showhide]
Q-9. Find the missing number and complete the series.
6, 9, 22.5, 90 ?
(A) 180
(B) 270
(C) 540
(D) 480
[showhide type="links9" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (C) 540 Solution:[/showhide]
Q-10. Find the correct number and complete the series
150, 252, 392, 576, 810, ?
(A) 1070
(B) 1080
(C) 1100
(D) 1160
[showhide type="links10" more_text="View Answer and Solution " less_text="Hide answer "] Answer: (C) 1100 Solution:[/showhide]