Number Series

1.		In the series: 625, 5, 125, 25, 25, _, 5,... What number should fill in the blank?

5

25

125

2.5

2.		Find the wrong term in the number series: 3, 10, 27, 4, 16, 64, 5, 25, 125

25

64

10

3

3.		In the series: 2, 2, 5, 13, 28,... What number should come next?

56

58

54

52

4.		In the series: 2, 3, 3, 5, 10, 13, _, 43, 172, 177,... What number should fill in the blank?

22

28

39

41

5.		In the series: 1, 5, 14, 30, 55, 91,... What number should come next?

132

140

151

162

6.		In the series: 48, 24, 96, 48, 192,... What number should come next?

92

86

96

102

7.		In the series: 1, 4, 10, 22, 46,... What number should come next?

88

84

94

100

8.		In the series: 240, _, 120, 40, 10, 2,... What number should fill in the blank?

120

240

60

480

9.		In the series: 3, 12, 27, 48, 75, 108,... What number should come next?

147

157

183

191

10.		In the series: 1, 3, 4, 8, 15, 27,... What number should come next?

64

44

50

52