1. Choose the correct alternative that will continue the same pattern and fill in the blank spaces:

2, 3, 5, 7, 11, (….), 17

A. 12

B. 13

C. 14

D. 15

Answer: Option B

Solution:

Clearly, the given series consists of prime numbers starting from 2. The prime number after 11 is 13. So, 13 is the missing number

2.522 1235 2661 4800 7652 11217 ?

A. 15495

B. 16208

C. 14782

D. 16921

Answer: Option A

3.What is the 8th term in the series 1, 4, 9, 18, 35, 68, . . .

A.262

B.148

C.342

D.112

Answer: Option c

Explanation:

1, 4, 9, 18, 35, 68, . . . The pattern is 1 = 21 – 1 4 = 22 – 0 9 = 23 + 1 18 = 24 + 2 35 = 25 + 3 68 = 26 + 4 So 8th term is 28 + 6 = 262

4. 8 11 21 15 18 21 22

A.25 18

B.25 21

C.25 29

D.24 21

E.22 26

Answer: Option B

5. Look at this series: 2, 6, 18, 54, … What number should come next?

A.108

B.148

C.162

D.216

Answer: Option C

6. Look at this series: F2, __, D8, C16, B32, … What number should fill the blank?

A.A16

B.G4

C.E4

D.E3

Answer: Option C

7. Look at this series: V, VIII, XI, XIV, __, XX, … What number should fill the blank?

A.IX

B.XXIII

C.XV

D.XVII

Answer: Option D

8.Look at this series: 4, 7, 25, 10, __, 20, 16, 19, … What number should fill the blank?

A.13

B.15

C.20

D.28

Answer: Option A

9. 6 10 14 18 22 26 30

A.36 40

B.33 37

C.38 42

D.34 36

E.34 38

Answer: Option D