Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Missing No. (Q.No. 7)
Directions to Solve
Insert the missing number.

7.
8, 24, 12, 36, 18, 54, (....)
27
108
68
72
Answer: Option
Explanation:

Numbers are alternatively multiplied by 3 and divided by 2.

So, the next number = 54 ÷ 2 = 27.

Discussion:
37 comments Page 4 of 4.

Sourabh said:   7 years ago
8 9 17 26 90 ?

Please help me guys, I'm not getting.

Sanju said:   7 years ago
6, 8, 7
3, 64, 4
24, 48, ?

Can anyone solve this?
(3)

Kiran said:   7 years ago
8*3=24 12*2=24
12*3=36 18*2=36
18*3=54 x*2 = 54.
i.e, x=54/2 = 27.
(1)

Amit said:   3 years ago
Thanks everyone for explaining the answer.
(4)

Guna said:   2 years ago
8 × 3 = 24,
24 ÷ 2 = 12,
12 × 3 = 36,
36 ÷ 2 = 18,
18 × 3 = 54,
54 ÷ 2 = 27.
(13)

Rekha said:   11 months ago
8 9 17 26 90 ?

The difference between 8 and 9 is "1" which is 1^2.
The difference between 9 and 17 is "8" which is 2^3.
The difference between 17 and 26 is "9" which is 3^2.
The difference between 26 and 90 is "64" which is 4^3.

Then the answer is 5^2 which is "25".

Teenaji said:   11 months ago
Yes, 27 is the correct answer.
(1)


Post your comments here:

Your comments will be displayed after verification.