Missing number

What is the missing number in this series? 8 2
14 6 11? 14 6 18 12
This question is related to Accenture Interview

Questions by neepabiswas

Editorial / Best Answer

rkpadki  

  • Member Since Feb-2008 | Feb 25th, 2008


Hi,

I came up with another thought...

the numbers are 8,2,14,6,11,?,14,6,18,12
Now add the 1st number and the last number .. it is 20.
not add the 2nd number which is 2 and the last but one number which is 18 ... it is 20..
So if you keep adding these all the sum equals to 20. So the number next to 11 should be 9. Any thoughts :-)

Showing Answers 1 - 0 of 0 Answers

ramyaac

  • Feb 24th, 2008
 

The missing number is 5!! the given numbers r:
8,2,14,6,11,?,14,6,18,12
Now...
8-6=2.
14-8=6.
again..after the missing number 14-8=6 n 18-6=12!
And so the missing number shuld be 11-6=5!!
Hopefully the answer is 5...if any body comes up wid another answer..plz do post it!!

  Was this answer useful?  Yes

rkpadki

  • Feb 25th, 2008
 

Hi,

I came up with another thought...

the numbers are 8,2,14,6,11,?,14,6,18,12
Now add the 1st number and the last number .. it is 20.
not add the 2nd number which is 2 and the last but one number which is 18 ... it is 20..
So if you keep adding these all the sum equals to 20. So the number next to 11 should be 9. Any thoughts :-)

mrbhush

  • Mar 25th, 2008
 

8,2, 14,6, 11,?, 14,6, 18,12
Answer : 21.

here we can see the difference between pairs...
in first pair : 8-2=6 then
14-6=8

11-?= 11-21=10

14-6=8
18-12=6.

  Was this answer useful?  Yes

anand3186

  • Jul 16th, 2009
 

8  ,  2  ,  14  ,  6  ,  11  ,  ?  ,  14  ,  6  ,  18  ,  12

   -6   +12    -8    +5           (*)    -8   +12   -6


Following the series, (*) has to be +5 . . .

So, ? + 5 = 14.

the missing no is 9.

First one is right. If you see the sum of first and last is 20. you will get this for all the numbers give in the question. So the missing number must be 9

Given number are 8, 2, 14, 6, 11, ?, 14, 6, 18, 12

8+12=20
2+18=20
14+6=20
6+14=20
11+?=20
=>20-11=9

Many thanks
Muhammed Kareem

  Was this answer useful?  Yes

21 will not be a best answer as per the rules in maths, your number cross the limit. The max number which you can get is >13. Kindly check the question once again and analyze the number given. you will understand.

Hope, it make some sense to you

Many thanks
Muhammed Kareem

  Was this answer useful?  Yes

saranyavadhana

  • Aug 17th, 2011
 

answer is 9

  Was this answer useful?  Yes

Guru

  • Aug 20th, 2011
 

Add the first and last number(i.e 8+12=20)

And add the second number and the number which second from last(i.e 2+18)

And so on............

Now the required answer is 9 (i.e 11+9=20)

  Was this answer useful?  Yes

Sravani

  • Aug 26th, 2011
 

Ya your thought is right.but it can b done like this.
the series is 8 2 14 6 11 ? 14 6 18 12
here we can tabulate as folows
frm front frm back
Diff (8,2) = 6 Diff (12,18) = 6
Diff (14,6) = 12 Diff (18,6) = 12
Diff (6,11) = 5 Diff (14,?) = 5
=> 14-5=9
So the answer is 9.

  Was this answer useful?  Yes

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

 

Related Answered Questions

 

Related Open Questions