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:
48 comments Page 4 of 5.
Dipanshu said:
1 decade ago
Here series of odd no. is added in given no..
like
2+(3)=5
5+(5)=10
10+(7)=17
17+(9)=26
26+(11)=37
37+(13)=50
but 50+15=65
here is 64 so odd no. in this series is 64.....
answer is 64;
like
2+(3)=5
5+(5)=10
10+(7)=17
17+(9)=26
26+(11)=37
37+(13)=50
but 50+15=65
here is 64 so odd no. in this series is 64.....
answer is 64;
Rsh said:
1 decade ago
The difference between each of them is odd no that is
2+3=5
5+5=10
10+7=17
17+9=26
26+11=37
37+13=50
50+15=64
But there is no 65 and there is 64. So answer is 64.
2+3=5
5+5=10
10+7=17
17+9=26
26+11=37
37+13=50
50+15=64
But there is no 65 and there is 64. So answer is 64.
Satyabrata mohanty said:
1 decade ago
This is the right method to solve it.
Sahil said:
1 decade ago
Another way of looking
2+3=5
5+5=10
10+7=17
17+9=26
26+11=37
37+13=50
50+15=65
64 is odd
i.e.. add next even number to the result staring from 3 we get 64 odd
2+3=5
5+5=10
10+7=17
17+9=26
26+11=37
37+13=50
50+15=65
64 is odd
i.e.. add next even number to the result staring from 3 we get 64 odd
Phanendra said:
1 decade ago
64 is the only perfect square and rest are not.
And also we can easily subtract the 2 numbers and the difference should be ordered by 3, 5, 7, 9, 11, 13, 15, 17. Like that'but the number 64 is exempted from this case.
And also we can easily subtract the 2 numbers and the difference should be ordered by 3, 5, 7, 9, 11, 13, 15, 17. Like that'but the number 64 is exempted from this case.
Sania said:
1 decade ago
All are in the form n*n+1.
Nishith said:
2 decades ago
Also 64 is the only perfect square and rest are not.
Sonutalwani said:
1 decade ago
2=even.
5=odd.
10=even.
17=odd.
26=even.
37=odd.
50=even.
Next number is odd but 64 is even.
5=odd.
10=even.
17=odd.
26=even.
37=odd.
50=even.
Next number is odd but 64 is even.
Devika said:
1 decade ago
I think Sonutalwani you are right but Deepu, Sahil, Rsh, Dipanshu, Teenu, Sourav and Nikita your explanations are not clear. Sania your formula is also right. Nishith, Vidhya and Vikram your also right.
Raja said:
1 decade ago
Adding the odd numbers like,
sequentially,
2+3 = 5;
5+5 = 10;
10+7 = 17;
17+9 = 26;
26+11 = 37;
37+13 = 50;
Then finally this sequential pattern we get
50+15 = 65.
But there will be 64 is here.
So that's why 64 is oddman out.
sequentially,
2+3 = 5;
5+5 = 10;
10+7 = 17;
17+9 = 26;
26+11 = 37;
37+13 = 50;
Then finally this sequential pattern we get
50+15 = 65.
But there will be 64 is here.
So that's why 64 is oddman out.
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