Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 5)
Directions to Solve
Find the odd man out.
5.
6, 9, 15, 21, 24, 28, 30
Answer: Option
Explanation:
Each of the numbers except 28, is a multiple of 3.
Discussion:
24 comments Page 1 of 3.
Kousik said:
1 decade ago
Each of the numbers except 28, is a multiple of 3.
Anil said:
1 decade ago
28, 24, 30 are devisible by 2 only 21 is not divisible by 2. So, why answer is 28 and why not 21?
Swati said:
1 decade ago
Yes I had confused about this question because each digit divisible by 2 but 21 is only digit its'nt divisible by 2, so the answer is 21 not 28.
Richa Aggarwal said:
1 decade ago
All the numbers are divided by 3 but 28 is not.
Rama krishna rao said:
1 decade ago
Here it is a number series 3 is added to first number and 6 is added to next two numbers
6+3=9
9+6=15
15+6=21
21+3=24
24+6=30
6+3=9
9+6=15
15+6=21
21+3=24
24+6=30
Vimal said:
1 decade ago
6, 9, 15, 21, 24, 28, 30
All the numbers are addition of 3, except 28
3+3=6
3+3+3=9
3+3+3+3+3=15
3+3+3+3+3+3+3=21
3+3+3+3+3+3+3+3=24
3+3+3+3+3+3+3+3+3=27
3+3+3+3+3+3+3+3+3+3=30
or
(another method is all the nos. are coming in table of 3, except 28.)
3*2=6
3*3=9
3*5=15
3*7=21
2*8=24
2*9=27
3*10=30
All the numbers are addition of 3, except 28
3+3=6
3+3+3=9
3+3+3+3+3=15
3+3+3+3+3+3+3=21
3+3+3+3+3+3+3+3=24
3+3+3+3+3+3+3+3+3=27
3+3+3+3+3+3+3+3+3+3=30
or
(another method is all the nos. are coming in table of 3, except 28.)
3*2=6
3*3=9
3*5=15
3*7=21
2*8=24
2*9=27
3*10=30
Sonutalwani said:
1 decade ago
3*2=6
3*3=9
3*5=15
3*7=21
3*8=24
3*10=30
But 28 is not divided by 3.
3*3=9
3*5=15
3*7=21
3*8=24
3*10=30
But 28 is not divided by 3.
Mahesh said:
1 decade ago
All the numbers are divided by 3 but 28 is not divisble
Sree said:
1 decade ago
By adding two digit numbers we get only single digit but 28 we get again two digits.
For 21 2+1 = 3 so on.
But 28 2+8 = 10.
For 21 2+1 = 3 so on.
But 28 2+8 = 10.
Pavi said:
1 decade ago
All numbers are divided by 3 but 28 is not divisible by 3.
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