{"id":30692,"date":"2019-06-21T18:49:14","date_gmt":"2019-06-21T13:19:14","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=30692"},"modified":"2019-06-21T18:49:14","modified_gmt":"2019-06-21T13:19:14","slug":"number-series-questions-for-ibps-rrb-po","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/number-series-questions-for-ibps-rrb-po\/","title":{"rendered":"Number Series Questions For IBPS RRB PO"},"content":{"rendered":"

Number Series Questions For IBPS RRB PO<\/h1>\n

Download Top-20 IBPS RRB PO Number Series Questions PDF. Number Series questions based on asked questions in previous year exam papers very important for the IBPS RRB PO (Officer Scale-I, II & III) exam.<\/p>\n

Download Number Series Questions For IBPS RRB PO<\/a><\/p>\n

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Instructions<\/b><\/p>\n

One of the numbers in the given series is incorrect. Find the incorrect number in the series<\/p>\n

Question 1:\u00a0<\/b>7, 33, 137, 553, 2217, 8871<\/p>\n

a)\u00a033<\/p>\n

b)\u00a0137<\/p>\n

c)\u00a0553<\/p>\n

d)\u00a08871<\/p>\n

e)\u00a02217<\/p>\n

Question 2:\u00a0<\/b>6, 12, 15, 30, 42, 56<\/p>\n

a)\u00a012<\/p>\n

b)\u00a030<\/p>\n

c)\u00a06<\/p>\n

d)\u00a056<\/p>\n

e)\u00a015<\/p>\n

Question 3:\u00a0<\/b>6, 19, 58, 172, 526<\/p>\n

a)\u00a0172<\/p>\n

b)\u00a058<\/p>\n

c)\u00a019<\/p>\n

d)\u00a0526<\/p>\n

e)\u00a06<\/p>\n

Question 4:\u00a0<\/b>6,36,180,720,2160,4230<\/p>\n

a)\u00a06<\/p>\n

b)\u00a04230<\/p>\n

c)\u00a02160<\/p>\n

d)\u00a036<\/p>\n

e)\u00a0720<\/p>\n

Instructions<\/b><\/p>\n

Which of the following numbers doesn’t fit the below series<\/p>\n

Question 5:\u00a0<\/b>343, 512, 729, 1000, 1329<\/p>\n

a)\u00a01000<\/p>\n

b)\u00a0512<\/p>\n

c)\u00a0343<\/p>\n

d)\u00a01329<\/p>\n

e)\u00a0729<\/p>\n

Question 6:\u00a0<\/b>1, 9, 23, 49, 81, 121<\/p>\n

a)\u00a09<\/p>\n

b)\u00a023<\/p>\n

c)\u00a01<\/p>\n

d)\u00a0121<\/p>\n

e)\u00a081<\/p>\n

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Question 7:\u00a0<\/b>51, 54, 59, 67, 75, 86<\/p>\n

a)\u00a051<\/p>\n

b)\u00a075<\/p>\n

c)\u00a067<\/p>\n

d)\u00a059<\/p>\n

e)\u00a086<\/p>\n

Question 8:\u00a0<\/b>21, 22, 26, 35, 51, 74<\/p>\n

a)\u00a074<\/p>\n

b)\u00a022<\/p>\n

c)\u00a035<\/p>\n

d)\u00a051<\/p>\n

e)\u00a021<\/p>\n

Question 9:\u00a0<\/b>1, 36, 121, 256, 484, 676<\/p>\n

a)\u00a036<\/p>\n

b)\u00a0121<\/p>\n

c)\u00a01<\/p>\n

d)\u00a0484<\/p>\n

e)\u00a0676<\/p>\n

Instructions<\/b><\/p>\n

Which of the following numbers doesn’t fit in the below series?<\/p>\n

Question 10:\u00a0<\/b>784, 392, 400, 200, 208, 102<\/p>\n

a)\u00a0392<\/p>\n

b)\u00a0400<\/p>\n

c)\u00a0208<\/p>\n

d)\u00a0200<\/p>\n

e)\u00a0102<\/p>\n

Question 11:\u00a0<\/b>3, 4, 10, 45, 196, 1005<\/p>\n

a)\u00a04<\/p>\n

b)\u00a045<\/p>\n

c)\u00a01005<\/p>\n

d)\u00a010<\/p>\n

e)\u00a0196<\/p>\n

Question 12:\u00a0<\/b>11, 16, 31, 56, 93, 136, 191<\/p>\n

a)\u00a016<\/p>\n

b)\u00a093<\/p>\n

c)\u00a0136<\/p>\n

d)\u00a031<\/p>\n

e)\u00a011<\/p>\n

Question 13:\u00a0<\/b>5, 8, 13, 15, 29, 40<\/p>\n

a)\u00a08<\/p>\n

b)\u00a013<\/p>\n

c)\u00a029<\/p>\n

d)\u00a040<\/p>\n

e)\u00a015<\/p>\n

Question 14:\u00a0<\/b>2, 4, 16, 96, 768, 7860<\/p>\n

a)\u00a04<\/p>\n

b)\u00a07860<\/p>\n

c)\u00a0768<\/p>\n

d)\u00a016<\/p>\n

e)\u00a096<\/p>\n

Instructions<\/b><\/p>\n

Which of the following number doesn’t fit in the below series<\/p>\n

Question 15:\u00a0<\/b>835, 819, 799, 781, 759, 735<\/p>\n

a)\u00a0799<\/p>\n

b)\u00a0835<\/p>\n

c)\u00a0735<\/p>\n

d)\u00a0781<\/p>\n

e)\u00a0759<\/p>\n

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Question 16:\u00a0<\/b>3, 24, 81, 192, 373<\/p>\n

a)\u00a081<\/p>\n

b)\u00a024<\/p>\n

c)\u00a0192<\/p>\n

d)\u00a03<\/p>\n

e)\u00a0373<\/p>\n

Question 17:\u00a0<\/b>198, 200, 200, 197, 202, 196<\/p>\n

a)\u00a0200<\/p>\n

b)\u00a0198<\/p>\n

c)\u00a0202<\/p>\n

d)\u00a0196<\/p>\n

e)\u00a0197<\/p>\n

Question 18:\u00a0<\/b>200, 219, 255, 314, 390<\/p>\n

a)\u00a0219<\/p>\n

b)\u00a0200<\/p>\n

c)\u00a0255<\/p>\n

d)\u00a0314<\/p>\n

e)\u00a0390<\/p>\n

Question 19:\u00a0<\/b>26, 37, 50, 65, 82, 102<\/p>\n

a)\u00a0102<\/p>\n

b)\u00a037<\/p>\n

c)\u00a026<\/p>\n

d)\u00a050<\/p>\n

e)\u00a082<\/p>\n

Instructions<\/b><\/p>\n

Which of the following number doesn’t fit in the given series?<\/p>\n

Question 20:\u00a0<\/b>19, 38, 114, 228, 682<\/p>\n

a)\u00a038<\/p>\n

b)\u00a0114<\/p>\n

c)\u00a019<\/p>\n

d)\u00a0682<\/p>\n

e)\u00a0228<\/p>\n

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Answers & Solutions:<\/strong><\/span><\/p>\n

1)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

7*4+5 = 28+5 = 33
\n33*4+5 = 132+5 = 137
\n137*4+5 = 548+5 = 553
\n553*4+5 = 2212+5 = 2217
\n2217*4+5 = 8868+5 = 8873
\nHence, 8871 must be replaced by 8873<\/p>\n

2)\u00a0Answer\u00a0(E)<\/strong><\/p>\n

2*3 = 6
\n3*4 = 12
\nNext term would be 4*5 = 20
\n5*6 = 30
\n6*7 = 42
\n7*8 = 56
\nHence, 15 must be replaced by 20.<\/p>\n

3)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

The pattern being followed here is *3+1
\n6*3+1 = 19,
\n19*3+1=58,
\nso next term would be 58*3+1= 175
\n175*3+1 = 526.
\nHence, 172 must be replaced by 175.<\/p>\n

4)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

36 = 6*6
\n180 = 36*5
\n720 = 180*4
\n2160 = 720*3
\nSo the next term will be, 2160*2 = 4320
\nHence, 4230 must be replaced by 4320.<\/p>\n

5)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

$343 = 7^3$
\n$512 = 8^3$
\n$729 = 9^3$
\n$1000 = 10^3$
\nHere, all numbers are cubes of 7,8,9,10,11,…
\nHence, Next number should be $1331 = 11^3$
\nHence, 1329 should be replaced by 1331.<\/p>\n

6)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

$1 = 1^2$
\n$9 = 3^2$
\n$25 = 5^2$
\n$49 = 7^2$
\n$81 = 9^2$
\n$121 = 11^2$
\nHere, Numbers are squares of odd numbers.
\nHence, 23 should be replaced by 25.<\/p>\n

7)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

51+3 = 54
\n54+5 = 59
\n59+8 = 67
\n67+8 = 75
\n75+11 = 86
\nHere, Difference between the numbers are odd numbers.
\nHence, 67 should be replaced by 66.<\/p>\n

8)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

21+1 = 22
\n22+4 = 26
\n26+9 = 35
\n35+16 = 51
\n51+25 = 76
\nHence, 74 should be replaced by 76.<\/p>\n

9)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

$1 = 1^1$
\n$36 = 6^2$
\n$121 = 11^2$
\n$256 = 16^2$
\n$484 = 22^2$
\n$676 = 26^2$
\nHere, Numbers are the squares of 1, 6, 11, 16, 22, 26,…
\nDifference between these numbers is 5 in all numbers except 16,22,26
\nHence, 22 should be replaced by 21 and therefore 484 should be replaced by 441.<\/p>\n

10)\u00a0Answer\u00a0(E)<\/strong><\/p>\n

784\/2 = 392
\n400\/2 = 200
\n208\/2 = 104.
\nHence, 102 should be replaced by 104.<\/p>\n

11)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

The given series is as below
\n3*1+1 = 3+1 = 4
\n4*2+4 = 8+4 = 12
\n12*3+9 = 36+9 = 45
\n45*4+16 = 180+16 = 196
\n196*5+25 = 980+25 = 1005<\/p>\n

Hence, 12 should be replaced by 10.<\/p>\n

12)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

11+5 = 16
\n16+15 = 31
\n31+25 = 56
\n56+37 = 93
\n93+43 = 136
\n136+55 = 191.
\nHere, Difference between the numbers are 5, 15, 25, 35, …..
\nHence, After 56, it should be
\n56+35 = 91.
\nHence, 93 should be replaced by 91.<\/p>\n

13)\u00a0Answer\u00a0(E)<\/strong><\/p>\n

5+3 = 8
\n8+5 = 13
\n13+2 = 15
\n15+14 = 29
\n29+11 = 40
\nHere, The difference are odd numbers.
\nHence, After 13, it should be
\n13+7 = 20
\n20+9 = 29.
\nHence, 15 should be replaced by 20.<\/p>\n

14)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

2*2 = 4
\n4*4 = 16
\n16*6 = 96
\n96*8 = 768
\n768*10 = 7680
\nHence, 7860 should be replaced by 7680.<\/p>\n

15)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

Difference in series is in increasing order as 16,18,20,22,24,….
\n835-16 = 819
\n819-18 = 801
\n801-20 = 781
\n781-22 = 759
\n759-24 = 735<\/p>\n

Hence, 799 should be replaced by 801.<\/p>\n

16)\u00a0Answer\u00a0(E)<\/strong><\/p>\n

$3\\times1^3 = 3$
\n$3\\times2^3 = 3\\times8 = 24$
\n$3\\times3^3 = 3\\times27 = 81$
\n$3\\times4^3 = 3\\times64 = 192$
\n$3\\times5^3 = 3\\times125 = 375$
\nHence, 373 must be replaced by 375.<\/p>\n

17)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

The given series is a combination of two series.
\n198, 200, 202, …
\n200, 197, 196,….
\nIn the first series,
\n198+2 = 200
\n200+2 = 202
\nIn the second series,
\n200-3 = 197
\n197-3 = 194
\nHence, 196 must be replaced by 194.<\/p>\n

18)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

The given series is in the form of
\n200+19 = 219
\n219+38 = 257
\n257+57 = 314
\n314+76 = 390
\nHence, 255 should be replaced by 257.<\/p>\n

19)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

26+11 = 37
\n37+13 = 50
\n50+15 = 65
\n65+17 = 82
\n82+19 = 101
\nHence, 102 should be replaced by 101.<\/p>\n

20)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

19*2 = 38
\n38*3 = 114
\n114*2 = 228
\n228*3 = 684
\nHence, 682 must be replaced by 684.<\/p>\n

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Number Series Questions For IBPS RRB PO Download Top-20 IBPS RRB PO Number Series Questions PDF. Number Series questions based on asked questions in previous year exam papers very important for the IBPS RRB PO (Officer Scale-I, II & III) exam. Instructions One of the numbers in the given series is incorrect. Find the incorrect […]<\/p>\n","protected":false},"author":32,"featured_media":30695,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[2069],"tags":[312],"class_list":{"0":"post-30692","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ibps-rrb-po","8":"tag-ibps-rrb-po"},"better_featured_image":{"id":30695,"alt_text":"number series questions for ibps rrb po","caption":"number series questions for ibps rrb po","description":"number series questions for ibps rrb 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