Series Set – 25

1. 116, 125, 107, 134, ?, 143
A) 96
B) 98
C) 85
D) 106
E) 83

Answer & Explanation

   Option B
Pattern
:
+9, -18 ,+27 , -36, +45

 

2. 8, 6, 8, 14, 30, ?
A) 60
B) 93
C) 77
D) 83
E) 71

Answer & Explanation

 Option C
Pattern
:
*0.5 + 2, *1 + 2, *1.5 + 2, *2 + 2, *2.5 + 2

 

3. 3, 5, 14, 42, 107, ?
A) 134
B) 244
C) 233
D) 247
E) 155

Answer & Explanation

  Option C
Pattern
:
+ (13+1), + (23+1), + (33+1), + (43+1), + (53+1)

 

4. 7, 11, 19, 36, 69, ?
A) 122
B) 110
C) 134
D) 127
E) 137

Answer & Explanation

  Option D
Pattern
:
Difference of difference

 

5. 6, 7, 24, 125, ?, 7947
A) 856
B) 816
C) 810
D) 882
E) 845

Answer & Explanation

 Option D
Pattern
:
*1 + 1, *3 +3, *5 + 5, *7 + 7, *9 + 9

 

6. 12, 8, 10, 17, 36, ?
A) 97
B) 108
C) 88
D) 98
E) 92

Answer & Explanation

  Option E
Pattern
:
*0.5 + 2, *1 + 2, *1.5 + 2, *2 + 2, *2.5 + 2

 

7. 2, 10, 20, 34, 56, ?
A) 100
B) 102
C) 96
D) 94
E) 90

Answer & Explanation

  Option D
Pattern
:
2,,,,,,, 10,,,,,,,,, 20,,,,,,,, 34,,,,,,,, 56,,,,,,,,, ?
,,,,,,8,,,,,,,,,10,,,,,,,14,,,,,,,,,,,,22,,,,,,,,,,,(38)
,,,,,,,,,,,2,,,,,,,,,,4,,,,,,,,,,8,,,,,,,,,,,(16)
?=56+22+16

 

8. 3, 5, 19, 101, ?, 6445
A) 605
B) 625
C) 715
D) 745
E) 765

Answer & Explanation

 Option C
Pattern
:
*1 + 2, *3 +4, *5 + 6, *7 + 8, *9 + 10 

 

9. 7, 9, 21, 67, 273, ?
A) 1371
B) 1275
C) 1276
D) 1311
E) 1245

Answer & Explanation

   Option A
Pattern
:
*1+2, *2+3, *3+4, *4+5, *5+6

 

10. 4, 6, 11, 21, ?, 64
A) 45
B) 38
C) 50
D) 35
E) 38

Answer & Explanation

 Option B
Pattern
:
+ (12+1), + (22+1), + (32+1), + (42+1), + (52+1)

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