Latest IBM Aptitude Question SOLUTION: 1)8,0.5,16,4,15,0.3,50,4.5,6,0.2,30,? 2)9,4,16,6,36,21,441,? 3)4,2,5,9,5,11,13,7,16,17,9,? 4)33,8,41,46,21,67,72,47,119,124,? 5)3,2,1,4,5,4,1,0,6,3,? 6)30.5,31,30,0,67.

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(#M40013759) IBM Logical Reasoning question IBM - Interview Experience. Bangalore, 20-12-2012 Keep an EYE

1)8,0.5,16,4,15,0.3,50,4.5,6,0.2,30,?

2)9,4,16,6,36,21,441,?

3)4,2,5,9,5,11,13,7,16,17,9,?

4)33,8,41,46,21,67,72,47,119,124,?

5)3,2,1,4,5,4,1,0,6,3,?

6)30.5,31,30,0,67.2,67,70,100,183.9?

7)48,24,35,7,16,8,75,15,80,40,?

8)1.8,3,0,6,2.5,5,0.5,3.4,2,1.7,4.8,6,?

9)1370,1320,1070,-180,?

10)49,7,98,16,4,48,9,3,36,25,5,?

Asked In IBM Jai (11 years ago)

Unsolved Read Solution (29)

Is this Puzzle helpful?   (22)   (10) Submit Your Solution Number Series

Read Solution (29) :

Shama vishnu Naik  (11 years ago)

9,4,16,6,36,21,441,?
9-5=4,4^2=16
16-10=6,6^2=36
36-15=21,21^2=441
441-20=421,421^2=277241

Is this solution Helpfull? Yes (43) | No (26)  

rajanesh.k  (11 years ago)

3)ans is 21
the series going like -
4,(4-2),(4+1)
9,(9-4),(9+2)
13,(13-6),(13+3)
17,(17-8),(17+4) so 21

Is this solution Helpfull? Yes (29) | No (3)  

payel Roy  (11 years ago)

1)1st:8,0.5,16,4
8/0.5=16,8*0.5=4
2nd:15,0.3,50,4.5
15/0.3=50,15*0.3=4.5
3rd:6,0.2,30,?
6/0.2=30,6*0.2=1.2
ans. 1.2

Is this solution Helpfull? Yes (23) | No (2)  

prawin kumar singh  (11 years ago)

ans 125
7^2=49 ,49*2=98
4^2=16 ,16*3=48
3^2=9 , 9*4=36
5^2=25 ,25 *5 =125

Is this solution Helpfull? Yes (12) | No (3)  

shaista naaz  (11 years ago)

really such kind of questions are asked in IBM. I mean 2 min 15 sec is nt enough 4 solving such questions

Is this solution Helpfull? Yes (12) | No   

Vinay Sipani   (11 years ago)

1) http://www.m4maths.com/13757-8-0-5-16-4-15-0-3-50-4-5-6-0-23-30.html

2) http://www.m4maths.com/placement-maths-puzzle.php?pid=13734

4)http://www.m4maths.com/placement-maths-puzzle.php?pid=13735

5) http://www.m4maths.com/13736-3-2-1-4-5-4-1-0-6-3.html

Is this solution Helpfull? Yes (10) | No (4)  

jitendra singh  (11 years ago)

10. 125 (49*2=98, 16*3=48, 9*4=36, 25*5=125)
9. -6430 (1370-50=1320, 1320-5*50=1070, 1070-250*5=-180......)

Is this solution Helpfull? Yes (9) | No (6)  

Ashish K Singh  (11 years ago)

1)5
The given series is -:
8,0.5,16,4,15,0.3,50,4.5,6,0.2,30,?
Divide it in group of four
8,0.5,16,4
15,0.3,50,4.5
6,0.2,30,?=5

Is this solution Helpfull? Yes (8) | No (33)  

Anil Kumar Bharti  (11 years ago)

4)33,8,41,46,21,67,72,47,119,124,?
exp:
21-8=13
47-21=26
so..
99-47=52
Ans: 99

Is this solution Helpfull? Yes (8) | No (5)  

Arun Kumar  (11 years ago)

5) 3,2,1,4,5,4,1,0,6,3

Take the first three numbers
3 - 2 = 1
1 + 2 = 3

Leave the next number

Take the next three numbers

5 - 4 = 1
1 + 4 = 5

Leave the next number

Take the next three numbers

6 - 3 = 3
3 + 3 = 6


So the answer is 3. :)

Is this solution Helpfull? Yes (7) | No (20)  

shivani  (10 years ago)

4)
33,8,41,46,21,67,72,47,119,124,x
33-8=25 left 41
46-21=25 left 67
72-47=25 left 119
124-x=25, x=149

Is this solution Helpfull? Yes (7) | No (10)  

Ananya Gupta  (11 years ago)

5) (3,2),1,(4,5),4,(1,0),6,(3,x)
3-2=1
4-5=-1
1-0=1
3-x=-1
therefore, x=4

Is this solution Helpfull? Yes (6) | No   

jitendra singh  (11 years ago)

2. 81 ( 9^2=81)
3. 20 (5, 11, 16, 20)
4. 99 (8,21,47,99)

Is this solution Helpfull? Yes (5) | No (3)  

Abhisek De  (10 years ago)

Q2)
4*4=16, 6*6=36, 21*21=441 ....and also
9-4=5
16-6=10
36-21=15
so this is going like 5,10,15... diff next diff will be 20
so..
441-20=421

Is this solution Helpfull? Yes (5) | No   

Deepthi Krishnan  (11 years ago)

1.8=3*0.6
2.5=5*0.5
3.4=2*1.7
4.8=6*0.8
ans=0.8

Is this solution Helpfull? Yes (4) | No   

shivani  (10 years ago)

9)1370,1320,1070,-180
here it is increasing like 5,25,125,625

1370-50=1320
1320-250=1070
1070-1250=-180
so
-180-6250=-6430

Is this solution Helpfull? Yes (4) | No   

Ashutosh Sharma  (11 years ago)

@shama vishny naik..
bro ans will be 421 not its square
as 9-5=4 n 4 is next to 9
similarly 6 is next to 16, and so on so 421 should be next to 441

Is this solution Helpfull? Yes (3) | No   

MEHARAJ SULTHANA.H  (11 years ago)

7)the ans is 155.there is multiple change of 5 and 2 consistently
i.e
(48,24)=24*2=48 (35,7)=7*5=35
(16,8)=8*2=16 (75,15)=15*5=75
(80,40)=40*2=80
there is some relationship on multiples of 2 with each other and same in multiples of 5 where
(48,16,80)->16*3=48 and 16*5=80
(24,8,40)->8*3=24 and 8*5=40
(35,75)->35*2+5=75
(7,15)->7*2+1=15
so the answer is (155,31)

Is this solution Helpfull? Yes (3) | No (10)  

arpit sangal  (11 years ago)

@divya & sowmya: Ans for 7 is 115.
48/24=2
35/7=5
16/8=2
75/15=5
80/40=2
75-35=40
75+40=115
15-7=8
15+8=23
So in this manner next 2 no. is 115,23.
115/23=5.

Is this solution Helpfull? Yes (2) | No (8)  

Sthitiprava Mohanty  (10 years ago)

33 8 41
46 21 67
72 47 119
124
46-33=13,72-46=26,124-72=52,21-8=13,47-21=26,
26+(13*3)=86 ANS

Is this solution Helpfull? Yes (2) | No   

Jai  (11 years ago)

8). 1.8=3*0.6
2.5=5*0.5
3.4=2*1.7
4.8=6*0.3
Ans:0.3

Is this solution Helpfull? Yes (1) | No (12)  

sowmya  (11 years ago)

7)8 am i crct?

Is this solution Helpfull? Yes (1) | No (5)  

Ravi  (11 years ago)

30.5--->31(rounded off to)---->30(rounded off to)--->0(as 30 is less than 50)
67.2--->67(rounded off to)---->70(rounded off to)--->100(as 70 is greater than 50)
183.9--->(rounded off to)---->184

Is this solution Helpfull? Yes (1) | No   

kumari prerna  (10 years ago)

10. 49*2= 98
16*3 =48
9*4 = 36
25*5 = 125

Is this solution Helpfull? Yes (1) | No   

thenmozhi  (9 years ago)

Q4)
1st:33,8,41
33-8=25 and 33+8=41
2nd:46,21,67
46-21=25 and 46+21=67
3rd:72,47,119
72-47=25 and 72+47=119
so,4th:124,?
124-x=25 =>124-25=x =>x=99
so ans is 99

Is this solution Helpfull? Yes (1) | No   

Harshitha   (7 years ago)

49,7,98 16,4,48 9,3,36, 24,5,x

7^2=49*2=98
4^2=16*3=48
..
..
5^2=25*5=125

Is this solution Helpfull? Yes (1) | No   

divya  (11 years ago)

what is the ans for 7th ques

Is this solution Helpfull? Yes | No   

arpit sangal  (11 years ago)

Can anyone give the solution of 5th & 6th.
If plz mail it on arpitsangal19@gmail.com

Is this solution Helpfull? Yes | No (3)  

Amardeep Verma  (9 years ago)

9,4,16,6,36,21,441
4*4=16, 16-10=6
6*6=36, 36-15=21
21*21=441 441-20=421 ans=421
series actually start from 3
3*3=9 9-5=4
4*4=16 16-10=6 & so on

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