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Reasoning Quiz For DSSSB & KVS/NVS 2017 Exams

Q1. Pointing to a boy, Pooja said, “He is the son of my paternal grandfather’s only daughter.” How is Pooja related to the boy?
(a) Mother
(b) Maternal Aunt
(c) Paternal Aunt
(d) None of these

Directions(2-6):What should come in place of question mark (?) in the following number series?

Q2. 11, 10, 18, 51, 200, (?)
(a) 700
(b) 775
(c) 965
(d) 995

Q3. 161 , 164 , 179 ,  242 ,  497 ,  (?)
(a) 1530
(b) 1510
(c) 1520
(d) 1555

Q4. 122 , 170 , 290 , ?
(a) 469
(b) 355
(c) 222
(d) 362

Q5. PRLN , QSMO, ?
(a) RTNK
(b) RSNP
(c) RTNP
(d) KTNP

Q6. 2 ,3 , 8 , ?
(a) 64
(b) 63
(c) 20
(d) 16

Directions(7-9):In each of these questions, a number series is given. In each series, only one number is wrong number. Find out the wrong number.

Q7. 9050 ,  5675 ,  3478 ,  2147 ,  1418 ,  1077 ,  950
(a) 9050
(b) 859
(c) 5675
(d) 1077

Q8. 8 , 12 , 24 , 46 , 72 , 108 , 216
(a) 216
(b) 24
(c) 46
(d) 108

Q9. 7 , 12 , 40 , 226 , 1742 , 17854
(a) 17854
(b) 12
(c) 40
(d) 1742

Q10. ’34’ is related to ’12’ in the same way as ’59’ is related to
(a) 45
(b) 44
(c) 82
(d) 65

Solutions:

S1.Ans.(d)
Sol.  Boy = son of Pooja’s grandfather’s only daughter
= son of Pooja’s paternal aunt
= Pooja’s cousin
Hence, Pooja is also the boy’s cousin.

S2.Ans.(d)
Sol.  The pattern of the number series is as given below:
11 × 1 – 1 = 10
10 × 2 – 2 = 18
18 × 3 – 3 = 51
51 × 4 – 4 = 200
200 × 5 – 5 = 995

S4.Ans.(d)
Sol.  (11)2 = 121+1= 122,
(13)2= 169+1= 170
(17)2= 289 + 1= 290,
Similarly

(19)2 = 361 + 1 = 362

S5.Ans.(c)
Sol.
P    R    L     N
Q   S     M   O
R   T     N    P

S6.Ans.(b)
Sol.
22= 4-1= 3
32= 9-1 = 8
82= 64-1= 63

S7.Ans.(d)
Sol.  The pattern of number series is as follows:
9050 – 153 = 9050 – 3375 = 5675
5675 – 133= 5675 – 2197 = 3478
3478 – 113= 3478 – 1331 = 2147
2147 – 93= 2147 – 729 = 1418
1418 – 73= 1418 – 343 = 1075  

S8.Ans.(c)
Sol.  The series is
×1.5, × 2, ×1.5, ×2, ×1.5, ×2, …..
24×1.5 = 36
So, 46 is wrong.

S9.Ans.(d)
Sol.  The pattern of number series is as follows:
7 × 2 – (0 + 2) = 12
12 × 4 – (2 + 6) = 48 – 8 = 40
40 × 6 – (4 + 10) = 240 – 14 = 226
226 × 8 – (6 + 14) = 1808 –  20= 1788  
1788× 10 – (8 + 18) = 17880 – 26 = 17854

S10.Ans.(a)
Sol. The second number is the product of the digits of the first. Join India's largest learning destination

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