Some numbers are arranged in a particular rule or order or logic then those Numbers are in Series.Based on various type of Question asked in different competitive Exams.We divided the Series into Three types.
1.Numbers series
2.Letter Series
3.Repeated Series
*TYPES OF SERIES:-
Natural Numbers:- 1,2,3,4…..........
Even numbers:2,4,6,8,10……..........
Odd numbers:1,3,5,7,9,11……........
Prime numbers:2,3,5,7,11,13,……..
*Increasing Series:
(a)Addition Series
(b)Product Series
*Decreasing Series
(a)Sub traction Series
(b)Division Series
*Square Series(n)2
*Cube Series(n)3
COMBINATION SERIES:-
n2+1, n2-1, n3+1, n3-1, n2+n, n2-n, n3+n, n3-n, ×n+1, ×n-1, ×n+n, ×n-n, n3+n2, n3-n2-------etc
In present exams, two models of number series are given.
I. Missing term:- In this series one term will be missing. Based on the logic of the other we have to find out the missing term.
II. Wrong number:- In this series.one term will be given wrong. We have to find out that wrong number
Some practice Questions:
1. 7,9,15,27, ?
A)74
B)47
C)63
D)59
E)None of these
1. Answer - .B)47 E
2. 63, 64.8, 67, 69.6 , ?
A)91.4
B)81.2
C)72.6
D)76.3
E)None of these
2. Answer - C)72.6
3. 19, 36, 70, 121, ?
A)234
B)197
C)213
D)189
E)None of these
3. Answer - D)189
4. 121, 120, 116, 107, 91, ?
A)73
B)45
C)53
D)66
E)None of these
4. Answer - D)66
5. 213, 217, 210, 214, 207, 211, ?
A)215
B)245
C)204
D)323
E)None of these
5. Answer - C)204
6. 816, 812, 404, 1200, 299, ?
A)1324
B)1475
C)1275
D)1534
E)None of these
6. Answer - B)1475
7. 124, 120.5, 113.5, 103, 89, ?
A)78.4
B)65.4
C)71.5
D)81.5
E)None of these
7. Answer - C)71.5
8. 725, 724, 716, 689, 625, ?
A)750
B)528
C)465
D)500
E)None of these
8. Answer - D)500
9. 17, 22.5, 50.5, 157, 633.5, ?
A)3173
B)2345
C)1347
D)2457
E)None of these
9. Answer - A)3173
10. 2, 13, 35, 79, 167, ?
A)416
B)343
C)321
D)257
E)None of these
10. Answer - B)343
11. 63, 66, 138, 423, 170434, a, b, c, d…Find the value of C
A)327
B)80
C)249
D)256
11. Answer - C)249
12. 173, 86.5, 216.25, 72.08,252.3234,p,q,r,s,t… Find the value of Q
A)237.8
B)292.5
C)342.9
D)126.8
12. Answer - B)292.5
13. 564, 221, 437, 312…1234,m,n,o,p…..Find the value of O
A)876
B)956
C)1029
D)918
13. Answer - D)918
14. 132,182,240, 306,992,a,b,c,d…..Find the value of c
A)1879
B)1290
C)1450
D)1260
14. Answer - D)1260
15. 987, 207.4, 2069, 423.8…….145, l, k, j…..Find the value of l
A)45
B)39
C)289
D)165
15. Answer - B)39
16. 5, 7.5, 22.5, 101.25, 93,a,b,c,d……..Find the value of d
A)1289.6
B)1578.5
C)1987.6
D)1883.25
16. Answer - D)1883.25
17. 216, 215,214,210,202, 63,r,s,t,u,….Find the value of U
A)83
B)90
C)49
D)57
17. Answer - C)49
18. 7,7,14,42,126,252,252, 123,u,v,w,x,y,z….Find the value of x
A)2865
B)1654
C)3245
D)2214
18. Answer - D)2214
19. 147,153,165,189,237, 652,a,b,c,d…….find the value of d
A)954
B)742
C)987
D)876
19. Answer - B)742
20. 754,564,190,543,327,216, 189,a,78,145,65,b…………find the value of a
A)111
B)123
C)134
D)254
20. Answer - A)111
Directions(21-30) : In these questions, a number series is given. Find out the missing number
21. 13, 7, 6, 14, 52, ?
A. 482
B. 476
C. 466
D. 424
E. 460
21. Answer - D. 424
22. 139, 142, 133, 160, 79,?
A. 326
B. 322
C. 331
D. 340
E. 355
22. Answer - B. 322
23. 10, 16, 27, 48, 84, ?
A. 138
B. 153
C. 166
D. 140
E. 135
23. Answer - D. 140
24. 66, 77, 63, 73, 60, ?
A. 66
B. 69
C. 61
D. 64
E. 63
24. Answer - B. 69
25. 16, 9, 8, 13, 25, ?
A. 64.5
B. 59.5
C. 63.5
D. 68.5
E. 61.5
25. Answer - C. 63.5
26. 11, 12, 22, 69, 272 ?
A. 1365
B. 1368
C. 1324
D. 1325
E. 1329
26. Answer - A. 1365
27. 11, 13, 16, 33, 96, ?
A. 358
B. 354
C. 386
D. 366
E. 353
27. Answer - E. 353
28. 4, 21, 120, 595, 2376 ?
A. 7125
B. 7035
C. 7085
D. 7055
E. 7115
28. Answer - A. 7125
29. 64, 66, 75, 103, 168, ?
A. 282
B. 294
C. 286
D. 295
E. 288
29. Answer - B. 294
30. 13, 25, 39, 57, 83, ?
A. 122
B. 124
C. 126
D. 120
E. 125
30. Answer - E. 125
Directions(31-40): In these questions, a number series is given. Only one number is wrong which does not fit in the series. Find out the wrong number.
31. 34, 40, 57, 86, 128, 185, 255
1. 40
2. 128
3. 57
4. 185
5. None of these
31. Answer - 4.185
32. 8, 12, 23, 73, 297, 1491, 8953
1. 8952
2. 8
3. 298
4. 10
5. None of these
32. Answer - 4.10
33. 7, 4, 5, 9, 21, 52.5, 160.5
1. 160.5
2. 5
3. 21
4. 7
5. None of these
33. Answer -3.21
1. 21
2. 14
3. 30
4. 2045
5. None of these
34. Answer - 4. 2045
35. 434, 418, 393, 357, 308, 244, 153
1. 357
2. 393
3. 418
4. 153
5. None of these
35. Answer -4.153
36. 8, 19, 42, 74, 118, 173, 239
1. 42
2. 239
3. 19
4. 8
5.None of these
36. Answer - 1.42
37. 40, 45, 60, 75, 120, 165, 220
1. 60
2. 40
3. 75
4. 165
5.None of these
37. Answer - 3.75
38. 960 953 939 918 890 855 810
1. 960
2. 953
3. 855
4. 939
5. None of these
38. Answer - 5. None of these
39. 972 484 240 118 57 26 11.25
1. 240
2. 130
3. 57
4. 26
5. None of these
39. Answer - 4. 26
40. 5 6 16 57 240 1245 7506
1. 5
2. 57
3. 240
4. 7
5. None of these
40. Answer - 3. 240
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