Latest IBM Aptitude Question SOLUTION: 1)1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7 2)41.45 ,41.5 ,42 ,18.23 ,18.2 ,18 3)11 ,8 ,17 ,14 ,23 ,24 ,31 ,32 4)5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3 5) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3 6)6,

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(#M40037639) IBM Logical Reasoning question Find The last term of the series Keep an EYE

1)1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7
2)41.45 ,41.5 ,42 ,18.23 ,18.2 ,18
3)11 ,8 ,17 ,14 ,23 ,24 ,31 ,32
4)5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3
5) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3
6)6, 3, 3, 9, 12, 5, 7, 35, 8, 6, 2
7)4, 2, 5, 9, 5, 11, 13, 7, 16, 17, 9
8). 0, 8, 12, 26, 23
9)18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30

Asked In IBM Abh (9 years ago)

Unsolved Read Solution (13)

Is this Puzzle helpful?   (20)   (5) Submit Your Solution Number Series

Read Solution (13) :

Saraswathy  (9 years ago)

1)1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7, x
1 + 3 + 1 = 5 => 5/2 = 2.5
5 + 1 + 4 = 10 => 10/2 = 5
4 + 8 + 7 = 19 => 19/2 = 9.5
Ans : 9.5

3)11 ,8 ,17 ,14 ,23 ,24 ,31 ,32
Alternate prime nos - 5
11
13 - 5 = 8
17
19 - 5 = 14
23
29 - 5 = 24
31
37 - 5 = 32
41 [Next prime no. after 37 is 41]
Ans : 41

4) (5, 1, 2, 8), (8, 1, 0, 9), (9, 2, 3, x)
5 + 1 + 2 = 8
8 + 1 + 0 = 9
9 + 2 + 3 = 14
Ans : 14

5) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3, x
5 + 1 + 2 = 8
8 + 1 + 0 = 9
9 + 2 + 3 = 14
14 + 1 + 3 = 18
Ans : 18

6) (6, 3, 3, 9), (12, 5, 7, 35), (8, 6, 2, x)
6 - 3 = 3
3 * 3 = 9
12 - 5 = 7
7 * 5 = 35
8 - 6 = 2
2 * 6 = 12
Ans : 12

7) (4, 2, 5), (9, 5, 11), (13, 7, 16), (17, 9, x)
Here difference between 1st nd 3rd no. increases by 1
5 - 4 = 1
11 - 9 = 2
16 - 13 = 3
x - 17 = 4
x = 21
Ans : 21

8) 0, 8, 12, 26, 23, x
Addition of alternate nos is 35..
0 + 12 + 23 = 35
Similarly 8 + 26 + x = 35
x = 1
Ans : 1
9) Wrong series.It should be (18, 24, 5), (21, 27, 8), (17, 23, 4),(24, 30, x)
18 + 6 = 24
24 - 19 = 5
21 + 6 = 27
27 - 19 = 8
17 + 6 = 23
23 - 19 = 4
24 + 6 = 30
30 - 19 = 11
Ans : 11

Is this solution Helpfull? Yes (70) | No (4)  

Pradeep  (9 years ago)

2) 73.09 is missing from question ??

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

Pradeep  (9 years ago)

3) 41 as {11,13,17,19,23,29,31,37,41 ;; 11,13-5=8,17,19-5=14, 23,29-5=24,31,37-5=32,41}

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

Sandeep S  (9 years ago)

2)41.45=14 18.23=14 9.32=14
41.5=10 18.2=11 9.3=12
42=6 18=9

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

Vinay Sipani   (9 years ago)

7) 21

(4,2,5),(9,5,11),(13,7,16),(17,9,21)

(4+2)-2/2=5
(9+5)-(5+1)/2=11
(13+7)-(7+1)/2=16
(17+9)-(9+1)/2=21
--------------------------------------

6)12

In groups of four
=> (6,3,3,9),(12,5,7,35),(8,6,2,12)

In each braces,
first term=sum of middle two.
Last term =product of middle two.
-------------------------------------
4) 14
Grouping in fours
=> (5,1,2,8),(8,1,0,9),(9,2,3,14)

Last term of each group = 1st term in next group
Last term = sum of first three

So next term = (9+2+3)=14
------------------------------------
5) 18
(5+1+2)=8
(8+1+0)=9
(9+2+3)=14
(14+1+3)=18

Is this solution Helpfull? Yes (2) | No (1)  

ravi  (9 years ago)

9) 18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30

24-18= 6
6-1=5 decrement of 1
21-8=13*2+1=27 multiply by 2 and increment of 1
23-17=6
6-2=4 decrement of 2
30-24=6*2+2= 14 multifly by 2 and increment of 2
Ans. 14

Is this solution Helpfull? Yes (2) | No (1)  

Pradeep  (9 years ago)

1) 9.5 is the answer as (1+3+1)=5/2=2.5;; 5+1+4=10/2=5;; 4+8+7=19 19/2=9.5 )

Is this solution Helpfull? Yes (1) | No (2)  

ganga bhavani.v  (9 years ago)

4.5+1+2=8
8+1+0=9
9+2+3=14
14+1+3=18

Is this solution Helpfull? Yes (1) | No (2)  

sonam  (9 years ago)

1)1+3+1=5, 5/2=2.5
5+1+4=10, 10/2=5
4+8+7=19, 19/2=9.5

Is this solution Helpfull? Yes (1) | No   

Adithya udaykiran  (9 years ago)

excuse me everyone.. please see my logic for 7th question and tel what is wrong in my view.
Divide the given series into 3 blocks:
(4,2,5,9), (5,11,13,7), (16,17,9,?)

now (4,2,5,9)= 5+4-2=9;
(5,11,13,7)13+5-11=7
similarly : (16,17,9,?) 16+9-17= 8

Is this solution Helpfull? Yes (1) | No (2)  

shivangi jain  (8 years ago)

2) series no 2 is incomplete...
it should be 41.45,41.50,42,18.23,18.2,18,73.09
so ans is .... 41.45 round off 41.5
41.5 round off 42
18.23 round off 18.2
18.2 round off 18
73.09 round off 73.1
so ans is 73.1

Is this solution Helpfull? Yes (1) | No   

Richa garg  (9 years ago)

1,3,1,2.5,5,1,4,5,4,8,7
1+3+1/2=2.5
5+1+4/2=5
4+8+7/2=19/2=9.5

Is this solution Helpfull? Yes | No   

Dolly Goswami  (7 years ago)

2)
41.5-41.45=0.05
42-41.5=.5
18.23-18.2=0.03
18.2-18=.2
17.09-x=0.01
x=17.08 is the correct answer

Is this solution Helpfull? Yes | No (1)  

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