Boom...

[Peter Simpson]

Here

Enjoy...

 

[EnriqueGonzalez]

Spoiler: ?

40

Took me 5 secs

And the second solution 10, but to test it, a little bit longer.

 

[derez]

96

 

[EnriqueGonzalez]

Another posible solution is 64:

Spoiler

(1 + 4 - 0) * 1 = 5
(2 + 5 - 1) * 2 = 12
(3 + 6 - 2) * 3 = 21
(8 + 11 - 3) * 4 = 64

Another way to get the 96 result (making the assumption that there are 5 missing operations)

Spoiler

(4° = 32, 5° = 45, 6° = 60, 7° = 77, 8° = 96)... incrementing 2 to the difference between results.

Of course you can get 96 by simply

Spoiler

1 + 1 * 4 = 5
2 + 2 * 5 = 12
3 + 3 * 6 = 21
8 + 8 * 11 = 96

 

[edm68]

I'm no math expert but I'll say 8+11=19? Just kidding, I agree with 96.

 

[stari]

40

 

[micro]

40

Yes 40

 

[JordiCP]

16
c = a * ( (b mod 10) +1 ) --> so all of you are mistaken

 

[charlesg]

52

 

[ilan]

Easy its 96

 

[ilan]

I have done the calculation like this:

First number (first row) * second number (next row)

And to know the second number in the next row you take the second number in the first row and add 1 to it

1 * 5 (4+1) = 5
2 * 6 (5+1) = 12
...
8 * 12 (11+1) = 96

 

[mangojack]

Def 96 ... using a simple method which does not entertain any conspiracy theory

Spoiler: Spoiler

1 + 4 = 5
2 + 5 (+ previous result) = 12
....
....
7 + 10 (+ previous result) = 77
8 + 11 (+ previous result) = 96

 

[Eme Fibonacci]

52?

Spoiler

1+4*(1)=5
2+5*(2)=12
3+6*(3)=21
8+11*(4)=52

 

[ilan]

52?

Spoiler

1+4*(1)=5
2+5*(2)=12
3+6*(3)=21
8+11*(4)=52

the last line is incorrect, it should be

1+4*(1)=5
2+5*(2)=12
3+6*(3)=21
4+7*(4) =32
5+8*(5)=45
6+9*(6)=60
7+10*(7)=77
8 +11*(8) =96

so the answer is still 96

 

[ilan]

16
c = a * ( (b mod 10) +1 ) --> so all of you are mistaken

8 + (11 mod 10) + 1 = 10 !!

and not 16

 

[Eme Fibonacci]

the last line is incorrect, it should be

1+4*(1)=5
2+5*(2)=12
3+6*(3)=21
4+7*(4) =32
5+8*(5)=45
6+9*(6)=60
7+10*(7)=77
8 +11*(8) =96

so the answer is still 96

You're right. Now I remembered why NASA did not hire me.

 

[ilan]

You're right. Now I remembered why NASA did not hire me.

Yeah its great to work in NASA. I enjoy it a lot

 

[JordiCP]

8 + (11 mod 10) + 1 = 10 !!

ehemmmm.....ehemmmm!!!!!!
You have 5 minutes to reconsider your answer and find the error you comitted, otherwise you'll be the first one-way Nasa astronaut to Mars

 

[ilan]

ehemmmm.....ehemmmm!!!!!!
You have 5 minutes to reconsider your answer and find the error you comitted, otherwise you'll be the first one-way Nasa astronaut to Mars

Ok ok i see it now

8 * ((11 mod 10)+1) = 16

 

[JordiCP]

Yess!

The bad news is that we've lost a good chance to make an Anywhere Software sponsored ad (assuming there was wifi in Mars and you brought your PC with you)