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 2 of 4.
Mohammed abu aslam said:
8 years ago
All the numbers in the table are multiples of 4.5 i.e( all the terms in the table satisfy the table of 4.5 except 18.5).
Hence the answer is 18.5.
Hence the answer is 18.5.
(2)
Elakkiya said:
7 years ago
@All.
In my view,
I took the alternate numbers in one series.
4.5,9,18,36.
4.5*2=9*2=18*2=36,
13.5*2=27*2=54,
So 18.5 is wrong I think.
In my view,
I took the alternate numbers in one series.
4.5,9,18,36.
4.5*2=9*2=18*2=36,
13.5*2=27*2=54,
So 18.5 is wrong I think.
(2)
Sudhakar KR said:
7 years ago
We may solve in another method tooo.
Consider odd series 36,18,9,4.5 (÷2).
Consider even series 54,27,13.5(÷2).
Wrong one is 18.5.
Consider odd series 36,18,9,4.5 (÷2).
Consider even series 54,27,13.5(÷2).
Wrong one is 18.5.
(3)
Nivedha said:
1 decade ago
Divide the terms by 2 to get the alternative number.
36/2 = 18.
18/2 = 9.
9/2 = 4.5 and 54/2 = 27.
27/2 = 13.5.
So 18.5 is incorrect.
36/2 = 18.
18/2 = 9.
9/2 = 4.5 and 54/2 = 27.
27/2 = 13.5.
So 18.5 is incorrect.
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
....
Kiran said:
1 decade ago
Pick alternate numbers
4.5*2=9
9*2=18
18*2=36
In the same way 18.5 is not the begining one for 2nd series. so ans 18.5.
4.5*2=9
9*2=18
18*2=36
In the same way 18.5 is not the begining one for 2nd series. so ans 18.5.
T dogg said:
1 decade ago
I just don't get it ! Maybe I have an IQ.
I answered 4.5. All the other numbers individually add up to '9'.
I answered 4.5. All the other numbers individually add up to '9'.
Meenali said:
1 decade ago
Sum of digits is 9 in all the numbers. Odd one is that which does not satisfy this condition.
Sravya said:
1 decade ago
Simply we can say that
36+18=54
18+9=27
9+4.5=13.5
by this we can say 18.5 is wrong
36+18=54
18+9=27
9+4.5=13.5
by this we can say 18.5 is wrong
Prem malde said:
8 years ago
18.5 cannot be divided by 9 while others can be divided by 9.
So answer is 18.5.
So answer is 18.5.
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