Latest IBM Aptitude Question SOLUTION: 36) 3/2,9/4,9/4,7/2,49/2,49/4,4/3,16/9,16/9,8/3,? 37) 2,6,5,14,11,26,17,? 38) 6,18,21,8,11,33,2,6,9,5,8,24,7,21,? 39) 9,4,16,6,36,21,441,? 40) 7,-35,-34,-3,15,16,4,? 41)

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(#M40157567) IBM Logical Reasoning question Number Series Keep an EYE

36) 3/2,9/4,9/4,7/2,49/2,49/4,4/3,16/9,16/9,8/3,?

37) 2,6,5,14,11,26,17,?

38) 6,18,21,8,11,33,2,6,9,5,8,24,7,21,?

39) 9,4,16,6,36,21,441,?

40) 7,-35,-34,-3,15,16,4,?

41) 2,7,-35,7,12,-60,5,10,?

42) 1.25,9,22.5,0.75,8.5,22,0.25,8?

43) -12,6,-15,-5,28,-14,9,3,-18,?

44) 7/6,3/2,1,5/6,13/6,5/2

45) 48,24,35,7,16,8,75,1580,40

46) 0,1,2,0.5,2,2,2,2,4,3,2

47) 2,3,10,15,26

48) 3/2, 2 �, 2 �, 3 �, 12 �, 12 �, 1 1/3, 1 7/9, 1 7/9, 2 2/3, ?

49) 13,3,2,8,10,3,4,12,4,8, ?

50) 5,6,6,5,6.5,8,7,9.5, ?

51) 3,11,31,69...

52) 4,2,36,4,5,1,36,16,6,3,81,?

53) 7,6,5,4,6,5,9,?

54) 3,12,29,?

55) 3,8,12,48,29?

56) 1,1/2,3/2,2,5,1/3,16/3,15,12,1/4,49/4,7,...?

57) 56,89,33,21,57,88,35,19,60,85,30,...?

58) 1/2,5/4,2,11/4,7/2,..?

59) 0.5,1.25,2,2.75,3.5,.?

60) 5,50,10,40,15,30,20,20,...?

61) 11,17,-6,-13,24,30,-19,-26,20,...?

62) 38,36,76,35,114,34,..?

63) 18,6,24,4,30,10,12,2,6,...?

64) 1.25,3.71,1.50,1,8.1,1.75,-1,9.1,2.00,...?

65) 9,3,6,21,9,12,33,15,18,45,21,24,...?

66) 12,3,15,14,6,19,16,9,23,18,12,...

67) -15,-14,34,32,42,39,58,54,61

Asked In IBM Rohini (7 years ago)

Unsolved Read Solution (28)

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Read Solution (28) :

Amit Santra  (7 years ago)

Q37. 2,6,5,14,11,26,17,??
prime number series : 2 3 5 7 11 13 17 19
in given series odd palce are prime number and even place are prime number multiplied by 2.
so 19*2= 38 ans

Is this solution Helpfull? Yes (8) | No   

Chandra Kant  (7 years ago)

38) 6*3=18 18+3=21
8+3=11 11*3=33
2*3=6 6+3=9
5+3=8 8*3=24
7*3=21 21+3=24

Is this solution Helpfull? Yes (5) | No   

Rajesh Maharana  (7 years ago)

39) 9, 4, 16, 6, 36, 21, 221, ?
Ans : 9 - 4 = 5
16 - 6 = 10
36 - 21 = 15
441 - 421 = 20
Therefore next value in the given series : 421

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

Rajesh Maharana  (7 years ago)

52) 4, 2, 36, 4, 5, 1, 36, 16, 6, 3, 81, ?
Ans : Divide the series into parts with each containing 4 terms :
i.e, 4, 2, 36, 4
5, 1, 36, 16
6, 3, 81, ?
Here, 3rd term = (1st term + 2nd term)^2 and 4th term = (1st term - 2nd term)^2
i.e,(4+2)^2 = 36 (4-2)^2 = 4
(5+1)^2 = 36 (5-1)^2 = 16
(6+3)^2 = 81, (6-3)^2 = 9
Therefore the required term = 9

Is this solution Helpfull? Yes (4) | No   

Rajesh Maharana  (7 years ago)

57) 56, 89, 33, 21, 57, 88, 35, 19, 60, 85, 30, ?
Ans : Divide the series into parts with 4 terms each :
56, 89, 33, 21
57, 88, 35, 19
60, 85, 30, ?
Now See :
56 + 1 = 57, 89 -1 = 88, 33 + 2 = 35, 21 - 2 = 19
57 + 3 = 60, 88 - 3 = 85, 35 - 5 = 30 , 19 + 5 = 24
Therefore the next term in the series is 24

Is this solution Helpfull? Yes (4) | No   

divya  (7 years ago)

42)1.25 9 22.5 0.75 8.5 22 0.25 8 ?
Split as 3 series
(1.25,0.75,0.25)
(9,8.5,8)
(22.5,22,?)
1.25-(0.75)=0.75
0.75-(0.50)=0.25
Next series
9-(0.5)=8.5
8.5-(0.5)=8
Final series
22.5-(0.5)=22
22-(0.5)=21.5
So ans is 21.5

Is this solution Helpfull? Yes (3) | No   

Rajesh Maharana  (7 years ago)

47) 2, 3, 10, 15, 26, ?
Ans : 1^2 + 1 = 2
2^2 - 1 = 3
3^2 + 1 = 10
4^2 - 1 = 15
5^2 + 1 = 26
6^2 - 1 = 35

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suraj kumar  (7 years ago)

66) 12 3 15
14 6 19
16 9 23
18 12 27 next no. is 27 bcoz 15+4=19,19+4=23,23+4=27

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Saptarshi Das  (7 years ago)

Please inform if you get the call or anything else after the EOI
arka1611@live.com

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Chethan  (7 years ago)

Q64) Actual series is 1.25 3 7.1 1.50 1 8.1 1.75 -1 9.1 2.00,...?
here three sub series
1.25 1.50 1.75 2.00 ...
3 1 -1 ........
7.1 8.1 9.1 .........
so, +0.25, -2, +1 form the sub series.. then ans is -3

Is this solution Helpfull? Yes (2) | No   

Rajesh Maharana  (7 years ago)

44) 7/6, 3/2, 1, 5/6, 13/6, 5/2, ?
Ans : Divide the given series into two parts with each part having 4 terms :
i.e. 7/6, 3/2, 1, 5/6
13/6, 5/2, ?, ?
Here Difference between corresponding terms is 1.
i.e. 13/6 - 7/6 = 1
5/2 - 3/2 = 1
Thus the next term is 2 so that 2 -1 = 1

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Rajesh Maharana  (7 years ago)

46) 0, 1, 2, 0.5, 2, 2, 2, 2, 4, 3, 2, ?
Ans : First divide the given series as parts each with 4 terms :
i.e. 0, 1, 2, 0.5
2, 2, 2, 2
4, 3, 2, ?
Here fourth term = (first term + second term)/third term
Therefore, next term in the given series = (4+3)/2 = 3.5

Is this solution Helpfull? Yes (2) | No   

Subham dey  (7 years ago)

45. 48,24,35,7,16,8,75,15,80,40...series is given wrong
48/2=24 35/5=7 16/2=8 75/5=15 similarly 40/5=8

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

Aradhana Singh  (7 years ago)

60)5,50,10,40,15,30,20,20,?
Break it into two parts :-
5,10,15,20
50,40,30,20

You can see numbers at odd place are multiple of 5 and those on even place are being decreased by 10.
The next term in the series will have an odd place and therefore it will be a multiple of 5 i.e 25.

Is this solution Helpfull? Yes (2) | No   

sheetal  (7 years ago)

43) -12,-12/-2,-15,-15/3,28,28/-2,9,9/3,-18,-18/-2
answer will be 9

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PRATAP KUMAR CHANDRA  (7 years ago)

67) the series should be 15,14,34,32,42,39,58,54,61,?
So,15-14=1
34-32=2
42-39=3
58-54=4
61-x=5
therefore, x=56.

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sahithi  (7 years ago)

36)3/2=>3*32*2=9/4
7/2=>7*7/2*2=49/4
4/3=>4*4/3*3=16/9
8/3=>8*8/3*3=64/9 is the right answer

Is this solution Helpfull? Yes (1) | No (3)  

Rajesh Maharana  (7 years ago)

41) 2, 7, -35, 7, 12, -60, 5, 10, ?
Ans :
2 + 5 = 7, 7 * -5 = -35
7 + 5 = 12, 12 * -5 = -60
5 + 5 = 10, 10 * -5 = -50
Therefore the next value in the series : -50

Is this solution Helpfull? Yes (1) | No   

Rajesh Maharana  (7 years ago)

58) 1/2, 5/4, 2, 11/4, 7/2, ?
Ans : Write the given series in such a way that the denominator of each term is 4 as following :

2/4, 5/4, 8/4, 11/4, 14/4

Here difference between the numerators of any two successive term is 3.
thus the next term is : 17/4

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TANMAYEE MAITY  (7 years ago)

Q40. 7, -35, -34, -3, 15, 16, 4, ?
7 *-5= -35
-35+1= -34
-3*-5=15
15+1=16
4*-5=20 (ans)

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ruby  (7 years ago)

51) 3,11,31,69.
1^3 + 2= 3
2^3 + 3 = 11
3^3 + 4= 31
4^3 + 5 = 69
5^3 + 6 = 131

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ruby  (7 years ago)

55) 3,8,12,48,29?
1^2 + 2= 3
2^2 * 2= 8
3^2 + 3 = 12
4^2 * 3 = 48
5^2 + 4 = 29
6^2 * 4= 144

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Chethan  (7 years ago)

65) 9,3,6,21,9,12,33,15,18,45,21,24,...?
we have 3 series like
9, 21, 33, 45,... common diff is 12..
3, 9, 15, 21,....
6,12, 18, 24...
so the next number in the series would be 57

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Ravalika Nagapuri  (7 years ago)

62) 148. 38*2=76,38*3=114,38*4=148.

Is this solution Helpfull? Yes | No (3)  

hina yamin  (7 years ago)

Q53)3*3=9+3=12
5*5=25+4=29
7*7=49+5=54

Is this solution Helpfull? Yes | No (2)  

Anjali Sahu  (7 years ago)

Q43. -12/-2 = 6
-15/3 = -5
28/-2 = -14
9/3 = 3
-18/-2 = 9 would be answer

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priyanshuchhawchharia  (7 years ago)

48.) 1,3,3,2,8,10,3,4,12,4,8...............? ... Solution. 12. 1*3=3, 2+8=10 same as 3*4=12, 4+8=12

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Jaskaran Singh  (7 years ago)

Q.57

1/2,5/4,2,11/4,7/2 .....?

next number is 7/2+3/4= 14/4+3/4= 17/4

as
1/2+3/4= 2/4+3/4= 5/4
5/4+3/4=8/4=2
2+3/4=11/4
11/4+3/4=14/4=7/2
14/4+3/4=17/4

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