The reasoning is the most scoring section in any competitive exam. It also develops or nourishes our critical thinking skills as compared to other subjects. In
DSSSB,
KVS,
NVS Exam, as a student to score well in this part, you have to start your preparation now because there is negative marking as well. The more you have prepared, the better you score.
Directions (1-2): What will come in place of question mark (?) in following number series?
Q1. 1, 2, 5, 10, 17, ?
(a) 26
(b) 27
(c) 28
Q2. 2, 3, 6, 11, 18, ?
(a) 27
(b) 28
(c) 29
(d) 30
Q3.In a certain code language, ‘will you leave now’ is written as ‘jim dim kim pim’; ‘now you stay here’ is written as ‘nim kim sim jim’ and ‘stay or leave’ is written as ‘rim pim sim’. How is ‘here’ written in that code language?
(a) jim
(b) nim
(c) pim
(d) Data inadequate
Q4.In a certain code COLD is written as ‘2 @ 4 #’ and DARK is written as ‘# 6 % 8’. How is ROCK written in that code?
(a) %628
(b) %@68
(c) %2@8
(d) %@28
Directions (5-8): In each of the following questions, select the one which is different from the other three responses.
Q5.
(a) Guitar
(b) Violin
(c) Flute
(d) Veena
Q6.
(a) Tomato
(b) Potato
(c) Onion
(d) Carrot
Q7.
(a) 125
(b) 343
(c) 516
(d) 729
Q8.
(a) 100
(b) 64
(c) 125
(d) 216
Q9. In a certain code, PRODUCTIONS is written as QQPCVEUHPMT. How is ORIENTATION written in that code?
(a) PQJDOVBSJNO
(b) PQJDOUBUJPO
(c) PSJFOVBSJNO
(d) NSHFMVBSJNO
Q10. If, in a cod, MIND becomes KGLB and ARGUE becomes YPESC, then what will DIAGRAM be in that code?
(a) BGYEPYK
(b) BGYPYEK
(c) GLPEYKB
(d) LKBGYPK
Solutions:

S3.Ans. (b)
Sol.‘here’ is coded as ‘nim’.
S4.Ans. (d)
Sol.‘R’ is coded as ‘%’, ‘O’ is coded as ‘@’, ‘C’ is coded as ‘2’ and ‘K’ is coded as ‘8’.
S5. Ans.(c)
Sol. Except Flute, all others are stringed musical instruments.
S6. Ans.(a)
Sol. Except Tomato, all others are modified roots or stems.
S7. Ans.(c)
Sol. Except the number 516, all others are perfect cubes.
125 = 5 × 5 × 5
343 = 7 × 7 × 7
729 = 9 × 9 × 9
S8. Ans.(a)
Sol. Except the number 100, all others are perfect cubes.
The number 64 is both perfect squares and perfect cubes.
100 = 10 × 10
64 = 4 × 4 × 4 = 8 × 8
125 = 5 × 5 × 5
216 = 6 × 6 × 6
S9. Ans.(a)
Sol. The first, third, fifth, seventh, ninth and eleventh letters in the word are each moved one step forward; the second, fourth, eighth and tenth letters are each moved one step backward, while the middle (i.e. sixth) letter is moved two steps forward to obtain the corresponding letters of the code.
S10. Ans.(a)
Sol. Each letter in the word is moved two steps backward to obtain the corresponding letter of the code.
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