Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Pick Wrong No. (Q.No. 4)
Directions to Solve
Find out the wrong number in the given sequence of numbers.

4.
1, 8, 27, 64, 124, 216, 343
8
27
64
124
Answer: Option
Explanation:
The numbers are 13, 23, 33, 43 etc. So, 124 is wrong; it must have been 53 i.e., 125.
Discussion:
6 comments Page 1 of 1.

Ayush Aggarwal said:   6 years ago
27 Number is an Odd Number.

Anonymous said:   7 years ago
Is it correct if we see it this way?

1-odd.
8-even.
27-odd.
64-even.
124-even.
216-even.
343-odd.

So there should be an odd number between 64 and 216 to maintain the odd-even series hence 124 is wrong.
(1)

Abi said:   9 years ago
Very useful for my interviews thanks.

S.Sri Raja Markandayan said:   9 years ago
I have a different option except 64, other nos cannot be taken squares. Check out.

Shameem khan said:   1 decade ago
1 8 27 64 124 216 343.

a:1 = 1.
8 = 8.
27=2+7=9.
64=6+4=10=1+0=1.
124=1+2+4=7.
216=2+1+6=9.
343=3+4+3=10=1+0=1.

Here the series is 1 8 9 1 8 9 1 8 9 but here second 8th position is occupied by 7. So the wrong number is 124.

Sonutalwani said:   1 decade ago
1*1*1=1.
2*2*2=8.
3*3*3=27.
4*4*4=64.
5*5*5=125.
6*6*6=216.
7*7*7=343.

124 is not a perfect cube of any number.

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