Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Odd Man Out (Q.No. 13)
Directions to Solve
Find the odd man out.
13.
41, 43, 47, 53, 61, 71, 73, 81
Answer: Option
Explanation:
Each of the numbers except 81 is a prime number.
Discussion:
61 comments Page 1 of 7.
Ankita sood said:
1 decade ago
General term is
tn=t(n-1)+2n ,where n is 1,2,3..
t = 41
t1= 41+2(1) = 43
t2= 43+2(2) = 47
t3= 47+2(3) = 53... and so on where 81 doesn't fit into the series.
tn=t(n-1)+2n ,where n is 1,2,3..
t = 41
t1= 41+2(1) = 43
t2= 43+2(2) = 47
t3= 47+2(3) = 53... and so on where 81 doesn't fit into the series.
Vikash said:
1 decade ago
Ya dude you are right
41+2=43
43+4=47
47+6=53
53+8=61
61+10=71
71+12=83
So 81 doesn't fit in the series.
41+2=43
43+4=47
47+6=53
53+8=61
61+10=71
71+12=83
So 81 doesn't fit in the series.
Vidya said:
1 decade ago
I agree with Vikash.
MYTHILEE VELU said:
1 decade ago
I Aree with vikash and vidya.
Asha said:
1 decade ago
What is the prime number?
Asha said:
1 decade ago
Explain what is prime number, I can't understand.
Karthi said:
1 decade ago
Number which is divide by itself and 1.
Chand said:
1 decade ago
Hello in b/w 73 is there na. Why cant 73. ?
Sandeep said:
1 decade ago
I didn't understand
when n=1
then t1=41(1-1)+2(1)
=41(0)+2
=0+2
then t1=2
then how come t1=43?
Please explain .
when n=1
then t1=41(1-1)+2(1)
=41(0)+2
=0+2
then t1=2
then how come t1=43?
Please explain .
Aran said:
1 decade ago
It will definitely 73.
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