RAILWAY GROUP-D PREVIOUS YEAR (2020) REASONING (NUMBER SERIES) QUESTIONS

RAILWAY GROUP-D PREVIOUS YEAR (2020) REASONING (NUMBER SERIES)  QUESTIONS

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In each of the following question,one of the terms in the number Series is wrong .Find out the wrong term .

1. 146,74,40,23,19.5,18.75

A) 74
B) 23
C) 19.5
D) 18.75

... Answer is B)
23 "

 

2. 2,8,3,27,4,64,5,225

A) 27
B) 8
C) 225
D) 64

... Answer is C)
225 "

 

3. 2,10,50,500,1000

A) 2
B) 10
C) 50
D) 1000

... Answer is D)
1000 "

 

4. 1,5,5,9,7,11,11,15,12,17

A) 11
B) 12
C) 17
D) 15

... Answer is B)
12 "

 

5. 2,3,6,12,24,58

A) 2
B) 3
C) 12
D) 58

... Answer is D)
58 "

 

6. 10,11,15,24,40,67

A) 87
B) 114
C) 95
D) 67

... Answer is D)
67 "

 

7. 10,14,28,32,64,68,132

A) 28
B) 32
C) 64
D) 132

... Answer is D)
132 "

 

8. 888,454,237,128.5,76.25,47.125

A) 76.25
B) 454
C) 128.5
D) 237

... Answer is A)
76.25 "

 

9. 8,13,21,32,47,63,83

A) 13
B) 32
C) 47
D) 63

... Answer is C)
47 "

10. 1,4,8,16,31,64,127,256

A) 31
B) 16
C) 8
D) None of the these.

... Answer is D)
 None of the these. "

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