Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Pick Wrong No. (Q.No. 13)
Directions to Solve
Find out the wrong number in the given sequence of numbers.
13.
36, 54, 18, 27, 9, 18.5, 4.5
Answer: Option
Explanation:
The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.
Discussion:
37 comments Page 4 of 4.
Farhat said:
1 decade ago
Nice question.
Guru Prakash.C said:
1 decade ago
The difference of first two is the third number
Akansh said:
1 decade ago
Just divide all term by 9 except 18.5 all will be divided ;).
Subha said:
1 decade ago
36/2=18
54/2=27
18/2=9
27/2=13.5
9/2=4.5
so 18.5 is wrong
54/2=27
18/2=9
27/2=13.5
9/2=4.5
so 18.5 is wrong
Tarun said:
1 decade ago
Two series both are divided by 2 in order to get the next term...
36/2=18
18/2=9
9/2=4.5
.....
and
54/2=27
27/2=13.5
13.5/2=6.75
....
36/2=18
18/2=9
9/2=4.5
.....
and
54/2=27
27/2=13.5
13.5/2=6.75
....
Vinoth said:
1 decade ago
Take the odd series first.
36/2 = 18.
18/2 = 9.
9/2 = 4.5.
Take the even series.
54/2 = 27.
27/2 = 13.5 but here 18.5.
So 18.5 is the wrong number in the series.
36/2 = 18.
18/2 = 9.
9/2 = 4.5.
Take the even series.
54/2 = 27.
27/2 = 13.5 but here 18.5.
So 18.5 is the wrong number in the series.
Meenali said:
1 decade ago
Sum of digits is 9 in all the numbers. Odd one is that which does not satisfy this condition.
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