# Thread: What is the missing number?

1. ## What is the missing number?

What is the number that goes where the question mark is?

{ 1, 6, 3, 7, ?, 12, 9, 14 }

possible numbers: 4, 7, 8, 10, 11, 13

2. ANs is 8
Sum of 1st and last term = 15

Sum of 2nd and second last = 15

7+? = 15

? = 8

Game Over XXX

3. Originally Posted by jerick
what is the number that goes where the question mark is?
{ 1, 6, 3, 7, ?, 12, 9, 14 }
possible numbers: 4, 7, 8, 10, 11, 13
hint:
6 - 1 = 5, 14 - 9 = 5
6 - 3 = 3, 12 - 9 = 3
7 - 3 = 4, 11 - 7 = 4

4. hint:
6 - 1 = 5, 14 - 9 = 5
6 - 3 = 3, 12 - 9 = 3
7 - 3 = 4, 11 - 7 = 4

If 11 is taken as answer than

This doesn't look correct

How do you explain that (add1) in b/w 11 and 12?

__________________
Sorry if I am wrong in guessing from your hint.

Wilmer, shouldn't you have said

7-3=12-?

a bit of a symptom of Adarsh's method though

6. Well, who cares...EIGHT is the answer

Apologies; not enough coffee...

7. Well, who cares...11 is the answer
Well I do care and I am sure OP also does...... and if I am not wrong we all in MHF do care to do correct things by currect method.

And No its still 8.
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Sorry for being rude but that statement doesn't suit you.

8. I say all possibilities suit the pattern, because I found that the pattern rule was that "they are all numbers".

Jokin', the answer should be 8, if the OP could now confirm if the puzzle has been solved ?

9. Yep, the answer is 8.

Or: (x-1)(x-6)(x-3)(x-7)(x-?)(x-12)(x-9)(x-14)=0

10. Originally Posted by Archie Meade

Wilmer, shouldn't you have said

7-3=12-?

a bit of a symptom of Adarsh's method though
I thought Wilmer's hint was quite neat. I was, as he said, a hint, and so hinted towards Adarsh's solution. Small typo, but that is beside the point.

Well I do care and I am sure OP also does...... and if I am not wrong we all in MHF do care to do correct things by currect method.

And No its still 8.
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Sorry for being rude but that statement doesn't suit you.
I propose that the number is not 8, instead it is 426/35. There is a perfectly logical sequence which goes 1, 6, 3, 7, 426/35, 12, 9, 14... I challenge you to find it.

(My point is that no, it doesn't matter!)

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# inser the missing number 7 14 10 12 14 9

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