Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Find Wrong No. (Q.No. 8)
Directions to Solve
Find out the wrong number in the series.
8.
6, 12, 48, 100, 384, 768, 3072
Answer: Option
Explanation:
Each even term of the series is obtained by multiplying the previous term by 2.
2nd term = (1st term) x 2 = 6 x 2 = 12
4th term = (3rd term) x 2 = 48 x 2 = 96.
6th term = (5th term) x 2 = 384 x 2 =768.
4th term should be 96 instead of 100.
Discussion:
10 comments Page 1 of 1.
Dhanu said:
1 decade ago
6, 12, 48, 100, 384, 768, 3072.
Divide the num by 2 = 3, 6, 24, 50, 194, 384, 1536 all the number divided by two there is odd.
Divide the number by 3 = 2, 4, 16, 100, 128, 256, 1024 here 100 is not divided by 3.
So 100 is odd.
Divide the num by 2 = 3, 6, 24, 50, 194, 384, 1536 all the number divided by two there is odd.
Divide the number by 3 = 2, 4, 16, 100, 128, 256, 1024 here 100 is not divided by 3.
So 100 is odd.
Tiyasa Majumdar said:
1 decade ago
The above explanation is wrong but answer is correct.
The logic is:
6*2 = 12.
12*4 = 48.
48*2 = 96.
96*4 = 384.
384*2 = 768.
768*4 = 3072.
So, the odd one is 100.
The logic is:
6*2 = 12.
12*4 = 48.
48*2 = 96.
96*4 = 384.
384*2 = 768.
768*4 = 3072.
So, the odd one is 100.
(1)
Ankit said:
1 decade ago
3072/768=4
768/384=2
384/96=4(Here instead of 100, 96 should have been the correct sequence no.)
96/48=2
48/12=4
12/6=2
Remainder is alternatingly 4 & 2
768/384=2
384/96=4(Here instead of 100, 96 should have been the correct sequence no.)
96/48=2
48/12=4
12/6=2
Remainder is alternatingly 4 & 2
Praveen kumar said:
1 decade ago
Sol:1st term into 2; (6*2=12)
2nd term into 4; (12*4=48)
3rd term into 2; (48*2=96)
4th term into 4; (96*4=384)
5th....
6th.... So on
2nd term into 4; (12*4=48)
3rd term into 2; (48*2=96)
4th term into 4; (96*4=384)
5th....
6th.... So on
Kannan.G said:
1 decade ago
Explanation given is not correct because the 7'th term is not equal to 6'th term*2. Think the reason is all the other numbers are multiples of 6 except 100.
Dhanu said:
1 decade ago
7th term = (6th term) * 2 = 768 * 2 = 1536
so above the explanation is wrong coz 7th term not equal to 3072.
so above the explanation is wrong coz 7th term not equal to 3072.
Ashik Mohammed Nazar said:
1 decade ago
You can easily guess it because, 100 is the only number that is not divisible by 6 in the above series !!!
Vineetha said:
9 years ago
We can easily guess it because, 100 is the only number that is not divisible by 6 in the above series.
Shimaz javaid said:
9 years ago
Simplest and correct explanation are other than 100 every term is divisible by 6.
(1)
Sada said:
8 years ago
Here, 100 is not a multiple of 6.
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