# Reasoning: Number Series Questions for SSC CGL and RRB Exam 2018: 6th July (Solutions)

Dear Students,

Dear  Aspirants,
Following 75 Days SSC CGL Study Plan by ADDA247 and SSCADDAA, the platform is all set to deliver the quizzes and notes on each four subjects asked in SSC CGL Tier-1 Examination. Quizzes are prepared under the consideration of latest pattern and level of Exam whereas notes deal with understanding the concepts, formulae, rules and sharpen your revising skills. Be a part of this study plan, visit SSCADDA website regularly to add up each day effort in your practice. SSC CGL Exam is to be conducted from 25 July to 20 August 2018. SSC CPO Exam is to be held from 4 June to 10 June 2018, It is time to knuckle down to get the dream job.

Needless to say, SSC CGL 2018 is the golden opportunity to be grabbed where again Reasoning Section might bring a major difference. To clear the decks, attempt Daily Reasoning Quiz provided on SSCADDA and make headway in upcoming govt exams.

Direction(1-10): A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
निर्देश(1-10):   नीचे दिए गये प्रश्नों में, एक श्रंखला दी गई है जिसमें एक पद अज्ञात हैं आपको दिए गए विकल्पों में से उस विकल्प का चयन करना है जो इस श्रंखला को पूरा करेगा?

Q1.
3, 10, 31, 94, ?
(a) 197
(b) 127
(c) 283
(d) 317
S1. Ans.(c)
Sol.
3 × 3 + 1 = 10
10 × 3 + 1 = 31
31 × 3 + 1 = 94
94 × 3 + 1 = 282 + 1 = 283

Q2.
3, 4, 12, 48, 576, ?
(a) 27648
(b) 13824
(c) 23040
(d) 28166
S2. Ans.(a)
Sol.
3 × 4 = 12
4 × 12 = 48
12 × 48 = 576
48 × 576 = 27648

Q3.
127, 63, 31, 15, 7, ?
(a) 2
(b) 3
(c) 4
(d) 5
S3. Ans.(b)
Sol.

Q4.
2, 22, 198, 1386, ?
(a) 2770
(b) 3990
(c) 6930
(d) 9702
S4. Ans.(c)
Sol. 2×11=22
22×9=198
198×7=1386
1386×5=6930

Q5.
3, 10, 24, 52, 108, ?
(a) 180
(b) 190
(c) 210
(d) 220
S5. Ans.(d)
Sol.

Q6.
1, 4, 15, 64, ?
(a) 285
(b) 315
(c) 325
(d) 375
S6. Ans.(c)
Sol. 1×2+2=4
4×3+3=15
15×4+4=64
64×5+5=325

Q7.
84, 42, 21, ?
(a) 10.5
(b) 16.8
(c) 18.4
(d) 19.6
S7. Ans.(a)
Sol.

Q8.
2.2, 14.8, 40, 90.4, ?
(a) 191.2
(b) 194.4
(c) 196.2
(d) 208.4
S8. Ans.(a)
Sol. 2.2×2+10.4=14.8
14.8×2+10.4=40
40×2+10.4=90.4
90.4×2+10.4=191.2

Q9.
1, 1, 3, 4, 5, 9, 7, 16, 9, 25, 11, ?
(a) 17
(b) 36
(c) 49
(d) 37
S9. Ans.(b)
Sol.

Q10.
?, 5, 15, 45, 113
(a) 1
(b) 2
(c) 3
(d) 4
S10. Ans.(c)
Sol.

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