Number Series

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

147

157

183

191

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

132

140

151

162

3.		In the series: 9, 27, 31, 155, 161, 1127,... What number should come next?

1285

1135

1298

2244

4.		In the series: 198, 194, 185, 169,... What number should come next?

127

161

136

144

5.		Find the wrong term in the number series: 1, 3, 12, 25, 48, 75, 108

3

12

25

75

6.		In the series: 3, 15, _, 63, 99, 143,... What number should fill in the blank?

33

35

45

56

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

92

86

96

102

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

120

240

60

480

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

22

28

39

41

10.		In the series: 1, 2, 3, 6, 9, 18, _, 54... What number should fill in the blank?

24

27

36

81