11. What is the next number in the series: 2, 3, 5, 7, 11, ?
A) 13
B) 17
C) 19
D) 23
[show_answer]The correct answer is: A [/show_answer]
12. What comes next in the series: 10, 20, 30, 40, 50, ?
A) 55
B) 60
C) 70
D) 65
[show_answer]The correct answer is: B [/show_answer]
13. What is the next number in the series: 1, 1, 2, 6, 24, ?
A) 120
B) 100
C) 150
D) 110
[show_answer]The correct answer is: A [/show_answer]
14. What comes next in the series: 2, 8, 18, 32, 50, ?
A) 72
B) 70
C) 64
D) 60
[show_answer]The correct answer is: C [/show_answer]
15. What is the next number in the series: 1, 4, 27, 256, ?
A) 625
B) 512
C) 729
D) 1000
[show_answer]The correct answer is: A [/show_answer]
16. What comes next in the series: 3, 9, 27, 81, ?
A) 243
B) 225
C) 312
D) 256
[show_answer]The correct answer is: A [/show_answer]
17. What is the next number in the series: 3, 8, 18, 38, 78, ?
A) 158
B) 156
C) 160
D) 155
[show_answer]The correct answer is: B [/show_answer]
18. What comes next in the series: 2, 8, 18, 32, 50, ?
A) 72
B) 74
C) 68
D) 60
[show_answer]The correct answer is: B [/show_answer]
19. What is the next number in the series: 3, 6, 18, 72, 360, ?
A) 1260
B) 1080
C) 720
D) 1440
[show_answer]The correct answer is: A [/show_answer]
20. What comes next in the series: 1, 2, 6, 24, 120, ?
A) 720
B) 480
C) 600
D) 240
[show_answer]The correct answer is: A [/show_answer]
