Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 8)
Directions to Solve
Find the odd man out.
8.
2, 5, 10, 17, 26, 37, 50, 64
Answer: Option
Explanation:
(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1
But, 64 is out of pattern.
Discussion:
49 comments Page 1 of 5.
Sanjeevani tiwari said:
6 years ago
The difference are odd.
5-2=3
10-5=5
17-10=7
26-17=9
37-26=11
50-37=13
But 64-50=14 which is not an odd number.
5-2=3
10-5=5
17-10=7
26-17=9
37-26=11
50-37=13
But 64-50=14 which is not an odd number.
(29)
Kalyan said:
7 years ago
2, 5, 10, 17, 26, 37, 50, 64.
The difference between two numbers
3 5 7 9 11 13 15.
3+2=5,
5+5=10, 7
+10=17,
9+17=26,
11+26=37,
13+37=50,
15+50=65.
According to this sequence, we get 65, so 64 is not matching.
The difference between two numbers
3 5 7 9 11 13 15.
3+2=5,
5+5=10, 7
+10=17,
9+17=26,
11+26=37,
13+37=50,
15+50=65.
According to this sequence, we get 65, so 64 is not matching.
(10)
SANAL said:
5 years ago
Simply 64 is only a perfect square. So, 64 is the answer.
(8)
Jobina said:
6 years ago
The numbers alternatively are even and odd except 64.
(5)
Jethalal said:
6 years ago
Yes right, Thanks @Sanjeevani Tiwari.
(1)
Nikhil Kumar said:
7 years ago
From my perspective;
For every two numbers if we observe the difference between the two numbers we are getting odd numbers like;
2-5=3,
5-10=5,
10-17=7,
17-26=9,
26-37=11,
37-50=13,
50-64=14(here the series is missing) after the difference '13' the next difference should be '17'.
These are in the form of odd number series.
For every two numbers if we observe the difference between the two numbers we are getting odd numbers like;
2-5=3,
5-10=5,
10-17=7,
17-26=9,
26-37=11,
37-50=13,
50-64=14(here the series is missing) after the difference '13' the next difference should be '17'.
These are in the form of odd number series.
(1)
Deepak said:
8 years ago
Logis is adding odd number 3, 5, 7, 9, 11, 13, ....
(1)
Akhil said:
8 years ago
@All.
As per my logic;
2+3=5, 5+5=10, 10+7=17, 17+9=26, 26+11=37, 37+13=50, 50+15=65.
As per my logic;
2+3=5, 5+5=10, 10+7=17, 17+9=26, 26+11=37, 37+13=50, 50+15=65.
(1)
Subin said:
8 years ago
I got another solution.
It's an alternate even-odd series..
2=even,
5=odd,
10=even,
17=odd,
26=even,
37=odd,
50=even,
64=should've been an odd no. but its not.
So, 64 is the answer.
It's an alternate even-odd series..
2=even,
5=odd,
10=even,
17=odd,
26=even,
37=odd,
50=even,
64=should've been an odd no. but its not.
So, 64 is the answer.
(1)
Balu said:
1 decade ago
Difference between 2 and 5 is 3, similarly difference 5 and 10 is 5.
Difference between 10 and 17 is 7, similarly difference between 17 and 26 is 9, difference between 26 and 37 is 11, difference between 37 and 50 is 13, difference between 50 and 64 is 14 (it is an odd one which have to ruled out).
So we have to add 3 5 7 11 13 15.
Difference between 10 and 17 is 7, similarly difference between 17 and 26 is 9, difference between 26 and 37 is 11, difference between 37 and 50 is 13, difference between 50 and 64 is 14 (it is an odd one which have to ruled out).
So we have to add 3 5 7 11 13 15.
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