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Reasoning Questions For DSSSB Exam: 24th April 2018 (Solutions)

Directions (1-3): In each of the following questions, a series is given, with one term/number/letter missing. Choose the correct alternative from the given ones that will complete the series.
Q1. LXF, MTJ, NPN, OLR, ?
(a) PIU
(b) PPV
(c) PHV
(d) PJW
Q2. 1.5, 2.3, 3.1, 3.9, ?
(a) 3.12
(b) 4.7
(c) 4.9
(d) 5.1
Q3. 14, 28, 20, 40, 32, 64, ?
(a) 52
(b) 56
(c) 128
(d) 48
Q4. Which will appear 3rd in the dictionary?
(a) colloquy
(b) collinear
(c) collegiate
(d) collision
Directions (5-6): In each of the following questions, from the given alternatives select the word which cannot be formed using the letters of the given word.
Q5. Ecofriendly
(a) Lend
(b) Friend
(c) Life
(d) Coffee
Q6. LIBERALISATION
(a) RATIONAL
(b) BEST
(c) RELATION
(d) RELATE
Q7. In a certain code, PRIEST is written as OQHDRS. PRISTINE can be written as
(a) OQHRSHMD
(b) OSHRQMDH
(c) QORHHSMD
(d) QOHRSHMD
Q8. If DEAN is written as NOKX, how NEED be written in that, code?
(a) NOOX
(b) XONO
(c) ONQX
(d) XOON
Q9. In a certain code, OPERATION is written as EPOTARNOI. Which word will be written as ORPSECSES?
(a) PORCESESS
(b) PROCESSES
(c) POSSESORC
(d) PROSSESC
Q10. Based on the relationship that exists between the first pair of figure, select the figure for the second from the answer figures.
Solutions:

S3. Ans.(b)
Sol. 14 × 2 = 28
28 – 8 = 20
20 × 2 = 40
40 – 8 = 32
32 × 2 = 64
64 – 8 = 56
S4. Ans.(d)
Sol. Arrangement of words as per dictionary:
S5. Ans.(d)
Sol. There is only one ‘F’ in the key word.
S6. Ans.(d)
Sol. There is only one ‘E’ in the key word.

S10. Ans.(c)
Sol. From first figure to second figure the triangle and the square interchange positions and the arrow is inverted.