Latest IBM Aptitude Question SOLUTION: plz solve these puzzles nd giv proper solutions. 1) 11,8,17,14,23,24,31,32 2)4,2,5,9,5,11,13,7,16,17,9 3)0,8,12,26,23,43 4)7.2,2.2,3.2,16,11,12,60,55,56 5)18,24,5,21,18,27,17

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(#M40028822) IBM Logical Reasoning question Keep an EYE

plz solve these puzzles nd giv proper solutions.


1) 11,8,17,14,23,24,31,32

2)4,2,5,9,5,11,13,7,16,17,9

3)0,8,12,26,23,43

4)7.2,2.2,3.2,16,11,12,60,55,56

5)18,24,5,21,18,27,17,23,4,24,30

6)2,3,10,15,26,35,50

Asked In IBM SNEHA MESHRAM (10 years ago)

Unsolved Read Solution (36)

Is this Puzzle helpful?   (5)   (1) Submit Your Solution Number Series

Read Solution (36) :

DIPTESH BERA  (10 years ago)

1)notice the prime no series of the above series. 11,13,17,19,23,29,31,37,41
plz leave the middle prime no.
don't think about the8,14,24,32..it's quite tricky qus abt prime no.
so the actual series will be 11,8,17,14,23,24,31,32,41
so the answer is 41.

Is this solution Helpfull? Yes (67) | No (5)  

DIPTESH BERA  (10 years ago)

(1*1) + 1 = 2
(2*2) – 1 = 3
(3*3) + 1 = 10
(4*4) - 1= 15
(5*5) + 1 = 26
(6*6)– 1 = 35
(7*7)+ 1 = 50
(8*8) - 1 = 63
so the answer is 63

Is this solution Helpfull? Yes (42) | No   

DIPTESH BERA  (10 years ago)

3)12-0 = 12
23-12 = 11
33-23 = 10
So The Answer will be 33
also notice this
26-8= 18
43-26= 17
59-43=16.

Is this solution Helpfull? Yes (25) | No   

srashti agarwal  (10 years ago)

2)(4,2,5),(9,5,11),(13,7,16),(17,9,?)
13-9 =4
7-5 =2
16-11 =5
similarly,17-13=4
9-7=2
21-16=5 , ans=21

Is this solution Helpfull? Yes (21) | No (6)  

ADRIJA CHATTERJEE  (10 years ago)

4) multiply 3rd term with 5(of every group consisting consecutive 3 no.s)
so ans is- 56*5=280
6)add 13(9+4) to 50.
every 2nd term is increased by 1 and follwed by 4. ans=63.

Is this solution Helpfull? Yes (14) | No (7)  

Amrit Chowdhury  (10 years ago)

5.first of all the series will be 18,24,5,21,27,8,17,23,4,24,30,?
The solution is...
18+6=24,24-19=5
21+6=27,27-19=8
17+6=23,23-19=4
24+6=30,30-19=11
so 11 is the next term.

Is this solution Helpfull? Yes (13) | No (2)  

Shamshad Alam  (10 years ago)

2) (4,2,5),(9,5,11),(13,7,16),(17,9,?)

4-2=2 | 4+1=5
9-4=5 | 9+2=11
13-6=7 |13+3=16
17-8=9 |17+4=?=21

Is this solution Helpfull? Yes (11) | No   

Divya  (10 years ago)

2) (4,2,5)(9,5,11)(13,7,16)(17,9,?)
Now consider every 1st term:4+5=9,9+4=13,13+4=17
2nd term:2+3=5,5+2=7,7+2=9
3rd term:5+6=11,11+5=16,16+5=21
hence the ans is: 21

Is this solution Helpfull? Yes (8) | No (3)  

Preeti  (10 years ago)

6) 1*1+1, 2*2-1,.....8*8-1=63
4) (a,b,c); (a, a-5, b+1);a=c*5......56*5=280
2) (abc)(4-2=2,9-4=5, 13-6=7, 17-8=9 )
(2+3=5, 5+6=11, 7+9=16, 9+12=21)........21

Is this solution Helpfull? Yes (7) | No   

ADRIJA CHATTERJEE  (10 years ago)

6) group the terms like : (2,3,10),(15,26,35),(50,..,..).
now see the diff of 2 n 3.i.e->1; 10 n 15 i.e-> 5; 26 n 25-> 9
now the diff of 1,5 is 4 n similarly 5 n 9.
so u need to add 4 with 9. i.e 13 and then add it with 50 to get the ans.(63)

Is this solution Helpfull? Yes (6) | No (1)  

Manav singh  (10 years ago)

(7.2,2.2,3.2),(16,11,12),(60,55,56)
each group has 5 as difference btw 1st two term and 1 as addition like(7.2-2.2=5 , 2.2+1=3.2)...last term of each grp is multiple of 5times of adjacent group like(3.2*5=16).....we get 56*5=280..as a next term

Is this solution Helpfull? Yes (6) | No   

sayanna datta  (10 years ago)

answer to question 1 will be 39.
2x5 +1=11
2x4=8
2x8+1=17
2x7=14
2x11+1=12
2x12=24
2x15+1=31
2x16=32
2x19+1=39
since (two consecutive numbers repeated between a gap of 3,3.4,4) like 8-5=3,11-8=3, 15-4=11, 19-4=15)so the last num to b multiplied is 19

Is this solution Helpfull? Yes (3) | No (6)  

harshita jain  (10 years ago)

3) divide series as 0, 12, 23, ? and 8, 26, 43....Now 8+18=26, 26+17=43 similarly 0+12=12 , 12+11=23, 23+10=33 ...Answer is 33

Is this solution Helpfull? Yes (3) | No   

sahana  (10 years ago)

6)2=1^2+1
3=2^2-1
10=3^2+1
15=4^2-1
26=5^2+1
35=6^2-1
50=7^2+1
x= 8^2-1
x=63

Is this solution Helpfull? Yes (3) | No   

Ritesh Anand  (10 years ago)

2) we take (4,2,5)=5-2=1..leave 2
(9,5,11)=11-9=2..leave 5
(13,7,16)=16-13=3...leave 7
so the next group should be (17,9,21)=4.. leave 9.
so answer will be 21.

Is this solution Helpfull? Yes (2) | No (6)  

kapilsingh sisodiya  (9 years ago)

4) 7.2 , 2.2 , 3.2 , 16 , 11 , 12 , 60 , 55 , 56
7.2 - 5 =2.2
2.2 + 1 =3.2
3.2 * 5 =16
16 - 5 =11
11 + 1 =12
12 * 5 =60
60 - 5 =55
55 +1 =56
56 * 5=280
ans is 280

Is this solution Helpfull? Yes (2) | No   

ADRIJA CHATTERJEE  (10 years ago)

there was a mistake @sneha. grps should be two consecutive terms at a time.(2,3)(10,15)n so on..

Is this solution Helpfull? Yes (1) | No   

MD ADIL RIZWAN  (10 years ago)

11,8,17,14,23,24,31,32 answer is 43

Is this solution Helpfull? Yes (1) | No   

k.vijaya padmini  (10 years ago)

3) Take alternating series and a no. to get next no.and then decrease by 1
(0,0+12,12+11)=(0,12,23)
(8,8+18,18+17)=(8,26,43)
so here next one comes like 23+10=33

Is this solution Helpfull? Yes (1) | No (1)  

SNEHA MESHRAM  (10 years ago)

thank you @diptesh wat abt the rest questions?

Is this solution Helpfull? Yes | No   

SNEHA MESHRAM  (10 years ago)

quite a difficult one to ans.

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SNEHA MESHRAM  (10 years ago)

i didnt get the 6th soln @adrija cud u plz write the steps for me

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sayanna datta  (10 years ago)

@diptesh in ur solution of questn number 3 what is the role of 8????????

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ashok  (10 years ago)

4)7.2-2.2=5
3.2-2.2=1
16-11=5
12-11=1
60-55=5
56-55=1
x-56=5
hence x=61
hence

Is this solution Helpfull? Yes | No (6)  

Deepak Mahajan  (10 years ago)

2 5
5 11
7 16
9 20
so ans is 20

Is this solution Helpfull? Yes | No   

sayantan de  (10 years ago)

11+6=17,17+6=23,23+8=31,31+8=39

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MD ADIL RIZWAN  (10 years ago)

Answer for 1st one is 39: Every alternate number is prime number. In this way 11 to 40 every alternate prime number is present in the given series so 39 is answer

Is this solution Helpfull? Yes | No (3)  

supriya   (10 years ago)

18,18+6=24,24-19=5
21,21-3=18,18+9=27
17+6=23, 23-19=4
24+6=30,30-19=11
ans11

Is this solution Helpfull? Yes | No (5)  

PREETY KUMARI  (10 years ago)

6) 2+3+10=15
26+35+50=111

Is this solution Helpfull? Yes | No   

shreya saha  (10 years ago)

5. (18,24,5) (21,18,27) (17,23,4) (24,30,_)
24-18=6 , 24-5=13
18-21=-3 , 18-27=-9
23-17=6 , 23-4=13
30-24=6 , 30-39=-9
so, answer is 39..

Is this solution Helpfull? Yes | No (5)  

SUMAN MAITI  (10 years ago)

3. 0,12,23(12-0=12: 23-12=11)
8,26,43(26-8=18; 43-26=17)
srs vl be..0,8,12,26,23,43,13
4. 2.2*5=11..11*5=55..55*5=275
275+5=280..
ans s 280..

Is this solution Helpfull? Yes | No (4)  

basanagouda  (10 years ago)

in the srs of prime numbers 11 13 17 19 23 29 31 37 ....every 2nd number is substracted with 5.

Is this solution Helpfull? Yes | No   

vishnu sankar  (9 years ago)

6.50+13=63
(1,5,9 are the differences bw consecutive numbers)

Is this solution Helpfull? Yes | No   

Chaitanya Singh   (9 years ago)

0,8,12,26,23,43 there is mistake

0, 8, 12, 26, 32 , 43...is okkkk and sol. is
diff b/w 0 and 8 is 1,2,3,4,5,6,7 are 7 numbers means 7/2=3.5=3 after round
diff b/w 8 and 12 is 3...

diff b/w 12 and 26 is 13,14,15,16,17,18,19, 20, 21, 22, 23, 24, 25 are 7 numbers means 13/2=6.5=6 after round
diff b/w 26 and 32 is 6...
same as ans is
48...

Is this solution Helpfull? Yes | No   

sushmitha  (9 years ago)

2) (4,2,5),(9,5,11),(13,7,16),(17,9,?)
4*2+1=9
2*2+1=5
5*2+1=11
4*3+1=13
2*3+1=7
5*3+1=16
4*4+1=17
2*4+1=9
5*4+1=21
Answer is 21

Is this solution Helpfull? Yes | No   

Mahesh K  (8 years ago)

Clearly notice the series 11,8,17,14,23,24,31,32
the above series looks like 11,13,17,19,23,29,31,37,41 prime number series
now the actual sol is 11,(13-5),17,(19-5),23,(29-5),31,(37-5),41
Hence the answer is 41 hope you understand the logic here

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