Latest IBM Aptitude Question SOLUTION: 1, 3, 1, 2.5, 5, 1, 4, 5, 4, 8, 7, ? 1, 1, 3, 2, 1, 5, 3, 4, 10, 4, 2, ? 5, 5, 7, 7, 9, 11, 11, 13, 13, 17, 15, 19, 17, ?

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(#M40157735) IBM Logical Reasoning question Number Series Keep an EYE

1, 3, 1, 2.5, 5, 1, 4, 5, 4, 8, 7, ?

1, 1, 3, 2, 1, 5, 3, 4, 10, 4, 2, ?

5, 5, 7, 7, 9, 11, 11, 13, 13, 17, 15, 19, 17, ?

Asked In IBM MUKTI (7 years ago)

Unsolved Read Solution (14)

Is this Puzzle helpful?   (9)   (4) Submit Your Solution Number Series

Read Solution (14) :

Ram Kumar Prajapati  (7 years ago)

Ans of 3rd: Numbers placed on even places are moving like: 5, 5+2, 7+4, 11+2, 13+4, 17+2, 19+4=23 Answer

Is this solution Helpfull? Yes (15) | No   

chandana adabala  (7 years ago)

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 (12) | No (3)  

rajeswari kampati  (7 years ago)

1+1=2+1=3
2+1=3+2=5
3+4=7+3=10
4+2=6+4=10
so ans is 10

Is this solution Helpfull? Yes (12) | No (5)  

rakesh singh  (7 years ago)

5,5,7,7,9,11,11,13,13,17,15,19,17
ans=23

Is this solution Helpfull? Yes (4) | No (3)  

smriti  (7 years ago)

1) 1,3,1,2.5,5,1,4,5,4,8,7,?
ans: 9.5
sol:-take first 4 number
1,3,1,2.5
1+3+1=5, 5/2= 2.5
next 4 number is : 5,1,4,5
5+1+4=10, 10/2=5
next number is: 4,8,7,?
4+8+7=19, 19/2=9.5

2) 1,1,3,2,1,5,3,4,10,4,2,?
ans : 12
sol : there are 3 different series
a) 1,2,3,4
b) 1,1,4,2
c) 3,5,10,?
3+2=5
5*2=10
10+2=12

3) 5,5,7,7,9,11,11,13,13,17,15,19,17,?
ans : 23
sol : divide it into 2 different series
a) 5,7,9,11,13,15,17
5+2=7 7+2=9
9+2=11 11+2=13
13+2=15 15+2=17
b) 5,7,11,13,17,19,?
5-7= -2 7-11= -4
11-13= -2 13-17 = -4
17-19= -2 19+4 =23

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

ashish kumar  (7 years ago)

2) (1+1+3)/2=2.5-0.5=2
(1+5+3)/2=4.5-0.5=4
(10+4+2)/2=8-0.5=7.5

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

ARUNMOY BANERJEE  (7 years ago)

1,1,3,2,1,5,3,4,10,4,2
There are 3 series
1,2,3,4
1,1,4,2
3,5,10,?
Now 3+2=5
5*2=10
10+2=12 Ans

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

priyanka  (7 years ago)

2) 1*1+3=4/2=2
1*5+3=8/2=4
10*4+2=42/2=21
ans= 21

Is this solution Helpfull? Yes (1) | No   

ddd  (7 years ago)

2) 1 |
1, 3,2 - (1+3)/2
1 |
5,3,4 - (5+3)/2
1 |
0,4,2 - (0+4)/2
The missing is 1.

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Vagmini  (7 years ago)

Is there anyone of ibm employee with software requisitionid :54925BR to attend for drive on 31st of this month.please comment here

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harish  (7 years ago)

3 rd ans:- (first adding two and add four to followed number number series)
5+2=7
7+4=11
11+2=13
13+4=17
17+2=19
19+4=23
so the answer is 23

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priya  (7 years ago)

3)ans=23
there are 4 different series 1st:5,9,13,17… and 2nd:5,11,17,?
3rd:7,11,15… and 4th:7,13,19…
Obs: gap of 4 in 1st and 3rd ,where as gap of 6 in 2nd and 4th

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Rajeev Nayan Vastri  (7 years ago)

Que(2)- 1, 1, 3, 2, 1, 5, 3, 4, 10 ,4 ,2 ?
Ans -> 2
There are three different series
1) 1 ,2 ,3 ,4

The other two series
2) 1 , 1 , 4 , 2
and
3) 3 , 5 , 10
have same logic.
The second one (1+1+sum of three digits+2)=1 ,1 , 4 , 2
and the third one (3 + 5 + sum of three digits + x ) = 3 , 5 , 10 , "2" -> Ans.

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vishwajeet singh  (7 years ago)

2nd> 1+1(+1)=3
2+1(+2)=5
3+4(+3)=10
4+2(+4)=10 ans

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