Tricky questions of Reasoning(Series) for SSC CGL Exam 2017


Directions (1-4): In each of the following question, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and replace the question mark in the given series. 
Q1. 1, 3, 3, 8, 7, 13, ?, 18, 21
(a) 10
(b) 11
(c) 12
(d) 13

Q2. 3, 7, 15, ?, 63, 127 
(a) 30
(b) 31
(c) 47
(d) 52

Q3. 1, 5, 13, 25, 41, ?  
(a) 51
(b) 57
(c) 61
(d) 63 

Q4. 1, 1, 8, 4, 27, 9, 64, ?  
(a) 12
(b) 16
(c) 81
(d) 49

Q5. Which fraction comes next in the sequence 1/2,3/4,5/8,7/16,  ?   
(a) 9/32
(b) 10/17
(c) 11/34
(d) 12/35

Directions (6-9): In each of the following questions, one term in the number series is wrong. Find out the wrong term. 
Q6. 125, 126, 124, 127, 123, 129 
(a) 124
(b) 127
(c) 123
(d) 129

Q7. 5, 10, 40, 80, 320, 550, 2560
(a) 10
(b) 80
(c) 320
(d) 550

Q8. 8, 13, 23, 43, 86, 163, 323 
(a) 23
(b) 163
(c) 86
(d) 323

Q9. 1, 5, 5, 9, 7, 11, 11, 15, 12, 17 
(a) 11
(b) 12
(c) 17
(d) 15

Directions (10-15): In each of the following questions, various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. 
Q10. A, I, P, V, A, E, ? 
(a) G
(b) F
(c) J
(d) H

Q11. b e d f ? h j ? l 
(a) i m 
(b) m i 
(c) i n 
(d) j m 

Q12. ajs, gpy, ? , sbk, yhq  
(a) emv 
(b) mve 
(c) oua 
(d) qzi

Q13. DEF, HIJ, MNO, ?  
(a) RST
(b) STU
(c) RTV
(d) SRQ

Q14. C4X, F9U, I16R, ? 
(a) L25Q
(b) L25P
(c) L25O
(d) L27P

Q15. Q1F, S2E, U6D, W2IC, ?  
(a) Y99B
(b) Y77B
(c) Y88B
(d) Z88B




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