Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 7)
Directions to Solve
Find the odd man out.
7.
1, 4, 9, 16, 20, 36, 49
Answer: Option
Explanation:
The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which to be turned out.
Discussion:
7 comments Page 1 of 1.
Logavarshini said:
2 years ago
Another way to solve .1, 9,20,49.
Here, 1 is the prime number. So, the answer is 1.
Here, 1 is the prime number. So, the answer is 1.
Subhadeep Maji said:
8 years ago
1^2, 2^2, 3^2, 4^2, 5^2, 6^2, 7^2.
As per the question
20 is not a perfect square whereas C is the correct answer.
As per the question
20 is not a perfect square whereas C is the correct answer.
(1)
Ligesh kp said:
9 years ago
As per my logic,
1 + 3 = 4
4 + 5 = 9
9 + 7 = 16
16 + 9 = 25
25 + 11 = 36
36 + 13 = 49
So 25 is missing here.
1 + 3 = 4
4 + 5 = 9
9 + 7 = 16
16 + 9 = 25
25 + 11 = 36
36 + 13 = 49
So 25 is missing here.
(3)
Saylee said:
9 years ago
All are square numbers expect 20.
Salman Baig said:
10 years ago
Another way to solve this:
1, 4, 9, 16, 20, 36, 49.
O, E, O, E, E, E, O.
There should be some odd no in series instead 20 which is even no.
1, 4, 9, 16, 20, 36, 49.
O, E, O, E, E, E, O.
There should be some odd no in series instead 20 which is even no.
Prashant Kamble said:
1 decade ago
all numbers are perfect square except 20.
Sonutalwani said:
1 decade ago
1*1=1.
2*2=4.
3*3=9.
4*4=16.
6*6=36.
7*7=49.
20 is not a square of any number.
2*2=4.
3*3=9.
4*4=16.
6*6=36.
7*7=49.
20 is not a square of any number.
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