Latest IBM Aptitude Question SOLUTION: 1.30.5,31,30,0,67.2,67,70,100,183.7,? 2.11,8,17,14,23,24,31,32,? 3.-12,6,-15,-5,28,-14,9,3,-18,? 4.340,680,1428,? 5.-27,9,-3,81,-27,9,54,? 6.18,6,24,4,30,10,12,2,6 7.1/5,1/2,1/3,2/

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(#M40157680) IBM Logical Reasoning question Series Keep an EYE

1.30.5,31,30,0,67.2,67,70,100,183.7,?
2.11,8,17,14,23,24,31,32,?
3.-12,6,-15,-5,28,-14,9,3,-18,?
4.340,680,1428,?
5.-27,9,-3,81,-27,9,54,?
6.18,6,24,4,30,10,12,2,6
7.1/5,1/2,1/3,2/5,1,2/3,3/5,1,3/2,1,4/5,?
8.42,78,89,68,49,61,39,63,76,?
9.1,2,2,4,8,1,8,1/2,4,1,1,4,4,?
10.-16,-8,4,24,12,-6,-40,?
11.4,3,6,5,11,10,19,18,30,29,?
12.3,4.5,7,4,6,8.5,5,7.5,10,6

Asked In IBM Moumi Das (7 years ago)

Solved Himanshu Sharma Read Solution (33)

Is this Puzzle helpful?   (29)   (3) Submit Your Solution Number Series

Read Solution (33) :

divya  (7 years ago)

6) 18 6 24 4 30 10 12 2 6 ?
Split as 18 6| 24 4 |30 10| 12 2| 6 ?
18/6=3,
24/4=6,
30/10=3,
12/2=6
Its 3,6,3,6 combination series
So next 6/x=3
6/3=x
2=x
X=2

Is this solution Helpfull? Yes (20) | No   

Pabitra Paul  (7 years ago)

2.Prime nos are 11 , 13, 17 , 19, 23 , 29, 31, 37, 41,43
puzzles Given 11, 8, 17, 14, 23, 24, 31, 32, ??

Sequence Formation : alternate prime num -5
ie Seq Formed as follows :
11 , 13-5, 17 , 19-5, 23 , 29-5, 31 , 37-5,41,43-5
that equals Given Sequence : 11,8,17,14,23,24,31,32

no next numbers will be 41,38
ans will be 41. ty

Is this solution Helpfull? Yes (17) | No (3)  

ravi  (7 years ago)

3. -12,6,-15,-5,28,-14,9,3,-18
Ans: multiplying alternatively by2,-2,3,-3
12=6×-2
-15=-5×3
28=-14×-2
9=3×3
-18=9×2

Next will be 9

Is this solution Helpfull? Yes (14) | No (5)  

Himanshu Sharma  (7 years ago) Best Solution

2.ans is 41 bco its a has a part of next to nexr prime no like11,17,23,31,41

Is this solution Helpfull? Yes (13) | No (31)  

velavali shaik hakeem  (7 years ago)

Q2:
11,8,17,14,23,24,31,32

DIFFERENCES ARE -3,9,-3,9,1,7,1.?
S0 ?=7
SO 32+7=39

Is this solution Helpfull? Yes (12) | No (8)  

Asmita gon  (7 years ago)

Q5. -27,9,-3,81,-27,9,54,?

-27,9,-3| 81,-27,9| 54,?

9*-3=-27 |-27*-3=81 |X*-3=54
-3*-3=9 |9*-3=-27 |

therefore, X= -18

Is this solution Helpfull? Yes (12) | No (10)  

deepthi  (7 years ago)

340,680,1428,
680/340=2
1428/680=2.1
(series will be 2,2.1,2.2(next))
x/1428=2.2
x=1428*2.2
=3141.6(ans)

Is this solution Helpfull? Yes (12) | No   

Asmita gon  (7 years ago)

11.
4,3| 6,5| 11,10| 19,18| 30,29| ?
3+3=6
5+6=11
10+9=19
18+12=30
29+15=44
Therefore, Ans=44

Is this solution Helpfull? Yes (9) | No (5)  

akhilnaarajkn  (7 years ago)

Question 4:
346,680,1428,?
680/346=1.9~2.0,
1428/680=2.1
x/1428=2.2
therefore....
1428*2.2=3141.6
Ans 3141.6

Is this solution Helpfull? Yes (6) | No (7)  

Vivek Gupta  (7 years ago)

12. Answer will be 11.5
3 *1.5 = 4.5 + 2.5 = 7
4*1.5 = 6 + 2.5 = 8.5
5*1.5 = 7.5 + 2.5 = 10
6*1.5 = 9 + 2.5 = 11.5

Is this solution Helpfull? Yes (6) | No (4)  

akshay soni  (7 years ago)

7.
1/5,1/2,1/3|2/5,1,2/3|,3/5,3/2,1,|4/5,?,?
multiplied by 2 , 3 then 4...each part
1/5*2 = 2/5
1/2*2 = 1
1/3*2 = 2/3
then
1/5*3 = 3/5
1/2*3 = 3/2
1/3*3 = 1
then
1/5*4 = 4/5
1/2*4 = 2
so ans 2.

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

Hari Balakrishnan  (7 years ago)

5)(-27,9,-3) (81,-27,9) (54,?)
-3*-3=9,-3*9=-27
9*-3=-27,9*9=81
6*-3=-18,6*9=54
Ans:-18

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

AVANISH SINGH RAJPUT  (7 years ago)

11. divide in group of two number.
like 4 3|6 5|11 10|19 18|30 29|?
by seeing the series
6-3=3
11-5=6
19-10=9
30-18=12
?-29=15
so,answer is 44

Is this solution Helpfull? Yes (4) | No (1)  

Pabitra Paul  (7 years ago)

Q12.the calculation will be ------>> 3+1.5=4.5
4.5+2.5=7
4+2=6(adding 0.5 with 1.5, that is equal to 2)
6+2.5=8.5
5+2.5=7.5(adding 0.5 with 2 we get 2.5)
7.5+2.5=10
6+3=9(again adding 0.5 with 2.5 we get 3)
so the answer will be 9

Is this solution Helpfull? Yes (4) | No (1)  

tejaswini  (7 years ago)

10)
-16,-8,4,24,12,-6,-40,?

-16,-8,4,|24,12,-6|,-40,?

-16/2=-8
-8/-2=4
24/2=12
12/-2=-6
-40/2=-20
-20/-2=10

Answer is -20,10

Is this solution Helpfull? Yes (3) | No   

Rahul Kumar  (7 years ago)

Q 6: - ans 2
Device in two group
18,6. #6*3
24,4. #4*6
30,10. #10*3
12,2. #2*6
6,? #2*3

Ans: 2

Is this solution Helpfull? Yes (2) | No (4)  

Neha  (7 years ago)

4,3,6,5,11,10,19,18,30,29
difference are=3,6,9,15
15+29=44

Is this solution Helpfull? Yes (2) | No   

Ashutosh Kumar  (7 years ago)

Q1. 184.
The fraction part 30.5 is becoming 31.similarly 67.2 and 183.7 will be 184

Is this solution Helpfull? Yes (2) | No (7)  

ayush trivedi  (7 years ago)

6.>> 18,6,24,4,30,10,12,2,6

make pair of 2
18/6=3
24/4=6
30/10=3
12/2=6
6/X=3

so the ans is X= 2

Is this solution Helpfull? Yes (2) | No   

Jaskaran Singh  (7 years ago)

Question no. 8

Right serie is 52,62,42,78,89,68,49,61,39,63,76, ?

(52,62,42),(78,89,68),(49,61,39),(63,76, x)
62 --> 52 + 10... 42 --> 52 - 10
89 --> 78 + 11... 68 --> 78 - 10
61 --> 49 + 12... 39 --> 49 - 10
76 --> 63 + 13... x --> 63 - 10
Ans : 53

Is this solution Helpfull? Yes (2) | No   

esha dian  (7 years ago)

12.ans will be 9
11.43
10.-20

Is this solution Helpfull? Yes (1) | No   

Pawan Sanodiya  (7 years ago)

6. 18,6,24,4,30,10,12,2,6,?

first take d alternate nos.
first part-18,24,30,12,6
if u can see its multiple of 6
so 6*3=18
6*4=24
6*5=30
6*2=12
6*1=6

second term- 6,4,10,2, ?
these are multiple of 2
2*3=6
2*2=4
2*5=10
2*1=2

so in multiples of 2 evry no is multiplied sequencly but it is not multiplied by 4
therefore 2*4=8

ans 8

Is this solution Helpfull? Yes (1) | No (4)  

CHANDAN KUMAR  (7 years ago)

Q1. (31 + 30 )/2 = 30.5 (No difference at all) so 30.5,31,30
Now (67+70)/2 = 68.5-67.2 = 1.3 difference
So Now there should be 2.6 difference, as difference of 0,1.3, 2.6 etc.
100,183.9, ?
(183.9 + x ) / 2 = 100 +2.6
x + 183.9 = 102.6 * 2
x =21.3

Is this solution Helpfull? Yes (1) | No (9)  

Keerthi T N  (7 years ago)

Q9, Question is wrong, right series is
1,2,2,4,8,1,8,1/2,4,1,4,4
Consider the numbers in odd places ie, 1,2,8,8,4,4
Consider the numbers in even places ie, 2,4,1,1/2(0.5),1,4
Multiply both odd nd even place numbers=
1*2=2
2*4=8
8*1=8
8*0.5=4
4*1=4
finally 4*4=16

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

Priyank Kumar Mishra  (7 years ago)

12> (3,4.5,7)-(4-6-8.5)-(5,7.5,10)-(6, .....
here 4.5=3+3*1/2
6=4+4*1/2
hence 9=6+6/2
ans 9

Is this solution Helpfull? Yes | No (2)  

AYUSH SINGH  (7 years ago)

Q7.)the series should be
1/5,1/2,1/3,2/5,1,2/3,3/5,1 1/2,1,4/5

1st series= (1/5, 2/5, 3/5, 4/5)
diff bwn each term= -1/5
2nd series= (1/2, 1, 1 1/2, x)= (0.5, 1, 1.5, 2) => x=2
diff bwn each term= -0.5
3rd series= (1/3, 2/3, 1, x)= > x=4/3
diff bwn each term= -1/3
ans = 2

Is this solution Helpfull? Yes | No (3)  

jay  (7 years ago)

Q4. 340,680,1428,?

340*2=680
1428*2=2856

Is this solution Helpfull? Yes | No (7)  

DEBOLINA SINGH  (7 years ago)

can anyone solve q.no 1 and 8?

Is this solution Helpfull? Yes | No   

nitin kishore  (7 years ago)

6) Ans: ( -18 )

-27,9,-3,81,-27,9,54,?

we will make three sets
(-27,9,-3)(81,-27,9)(54,?)
1st term 2nd term
------------ --------------
-3*-3=9 9*-3= -27
9*-3= -27 -27*-3= 81
54= -18*-3

so,
ANS is -18

Is this solution Helpfull? Yes | No (1)  

vigneshwer  (6 years ago)

1)200 Round off value 183.2. close to 200 so 200

Is this solution Helpfull? Yes | No (1)  

surendhar  (6 years ago)

7.1/5,1/2,1/3,2/5,1,2/3,3/5,1,3/2,1,4/5,?
1st series (1/5,2/5,3/5,4/5....)
2 nd series(1/2,2/2,2/3.....)
3 rd series(1/3,2/3,3/3,3/4....)
therefore after 4/5 , 4/2=2 is the ans
ans:2

Is this solution Helpfull? Yes | No   

Razaullah Ashraf  (6 years ago)

1. 30.5=31
183.9=184
now the series becomes
31,31,30,0,67,67,70,100,184,?
ans is 184
make pairs ,1st pair no difference
2nd pair 30 is difference
3rd pair no diff
4th pair 30 is diff
so last pair no diff should be thr 184

Is this solution Helpfull? Yes | No   

Avishek Ghimire  (6 years ago)

3. -12,6,-15,-5,28,-14,9,3,-18,?
here,
6*-2=-12; -5*3=-15
-14*-2=28; 3*3=9
hence, 9*-2=-18

Is this solution Helpfull? Yes | No   

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