odd one out 7 9 17 42 173 248

alternate number is odd and even,but 2nd place should be even.but it is odd,so answer is 9
10 years agoHelpfull: Yes(7) No(9)
I think 9......
10 years agoHelpfull: Yes(3) No(9)
ans is 9
these are arrange in alternate, odd & even
10 years agoHelpfull: Yes(1) No(2)
9,,Because 9 is square of a number..
10 years agoHelpfull: Yes(1) No(0)
[gautam gaurav]
alternate number is odd and even,but 2nd place should be even.but it is odd,so answer is 9
10 years agoHelpfull: Yes(1) No(1)
odd and even arrangement so ans is 9
10 years agoHelpfull: Yes(0) No(3)
answer is nnine becoz alternate numbers must be even...
10 years agoHelpfull: Yes(0) No(1)
7 is odd number 9 is also odd number but next number 17 it is odd number so on
so here 9 is the answer
10 years agoHelpfull: Yes(0) No(0)
the answer is 17.
10 years agoHelpfull: Yes(0) No(6)
alternate number is odd and even,but 2nd place should be even.but it is odd,so answer is 9
10 years agoHelpfull: Yes(0) No(0)
9 is square
10 years agoHelpfull: Yes(0) No(0)

odd one out.
7,9,17,42,173,248