Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 14)
Directions to Solve
Find the odd man out.
14.
3, 5, 7, 12, 17, 19
Answer: Option
Explanation:
Each of the numbers is a prime number except 12.
Discussion:
35 comments Page 1 of 4.
Aiswarya said:
1 decade ago
To be clear 12 is not a prime number because it is divisible by 9 and 1. Prime number is only divisible by 1 and it should not be multiple of any other number.
Mobi said:
8 years ago
The series can follow 2, 5, 2, 5 (these being the difference between the two numbers).
So the series will be like 3 5 10 12 17 19. So 7 is the odd one out.
So the series will be like 3 5 10 12 17 19. So 7 is the odd one out.
Suyash said:
1 decade ago
Prime number is a number who has no factor except 1 and the number itself while composite number contain other factors leaving 1 and the number itself.
Adhiyan said:
8 years ago
The remainder for every other number is 1 except 12 hence 12 is the odd one.
3/2 = 1
5/2 = 1
7/2 = 1
12/2 = 0 this is right
17/2 = 1
19 / 2 = 1
3/2 = 1
5/2 = 1
7/2 = 1
12/2 = 0 this is right
17/2 = 1
19 / 2 = 1
Rakesh said:
1 decade ago
The difference between the two nos following this series- 2, 2, 5, 5, . So the next no will be with the difference of 8 i.e. 25. So 19 is odd.
Priya said:
1 decade ago
3+2 = 5.
5+2 = 7.
7+5 = 12.
12+5 = 17.
19 +2 = 23.
Every answer is odd number so 12 is even.
5+2 = 7.
7+5 = 12.
12+5 = 17.
19 +2 = 23.
Every answer is odd number so 12 is even.
Tony stark said:
8 years ago
3+5 =7
7+5 =12
12+7= 19
Thus if form Fibbonaci series then odd one in series is 12 . 12 also be the answer.
7+5 =12
12+7= 19
Thus if form Fibbonaci series then odd one in series is 12 . 12 also be the answer.
Abinayak said:
1 decade ago
Exactly answer identified in each number difference in 2 but 12 and 17 difference in 5. So answer is 12.
Ashraf hashmi said:
10 years ago
12 is even number because it is divisible by 2, 3, 4, 6 (Prime number divisible by 1 and itself).
APARNA DEVI said:
1 decade ago
Please anyone can explain what is prime number and what is composite number?
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