Math

I got 44 but there are multiple patterns that you can see here and apply to get wildly different answers.

Oh, it's common core bullshit, where you can just make shit up in the most unintuitive way possible

This.

5->12 is an increase of 7
12->21 is an increase of 9

Since it increased by 9, that precludes the RHS from 'jumping' by prime numbers

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

I got 96 by adding the result of the left side to the previous number on the right side (ie. right(1) = 5 and left(2) = 2 + 5 = 7, so right(2) = 5 + 7 = 12).

However, this assumes that the 4, 5, 6, and 7 lines exist. Taking this graphic at face value, you'd have ? = right(4) = right(3) + left(4) = 21 + (8 + 11) = 21 + 19 = 40. I'm leaning towards 40 being the correct answer.

but ther'es no indication of a sequence

the jump in numbers indicates a sequence

the numbers increasing (1, 2, 3 ...) and (4, 5, 6 ... ) indicate a sequence

Re-tarded...

3 to 8
and 6 to 11
they both jump by 5 which indicates a sequence

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

Your glittering evening gown indicates sequins.

I agree with you. I think the fourth line is the fourth iteration (there is no 4 + 7, ..., 7 + 10). That's how I got 40 (the sum on the left plus the previous result on the right is the new right term).
There is no indication (such as something like a "..." to indicate that every term from 4 to 7 is also included) that the fourth line isn't just the fourth term.

Although this might not be exactly the same as what you all did, I got the pattern from multiplying the two numbers and then adding the left number to the product.

So 1 + 4 = 5 is
(1*4) + 1 = 5

(2*5) + 2 = 12

(3*6) + 3 = 21

(8*11) + 8 = 96

its 40.

it also seems arbitrary why its 40.
this is for people who think they are smart, but do not go very far in math.

I hate this bullshit. You CAN redefine + however you want, but that doesn't mean you should. Just write f(1, 4) = 5, ..., it's not like functions are a fucking hard concept.

Worse, it appears to be underdetermined, as I see no obvious problem with either of the suggested solutions.

This. How I ended up with 96

(1*4) + 1 = 5
(2*5) + 2 = 12
(3*6) + 3 = 21
(8*11) + 4 = 92

the answer is 52. surprised no one else got it yet.

I hate this shit so much. i could say figure an absolutely absurd sequence out and only genius people can figure it out. No, perhaps it's just fucking stupid.

forgot to show my work.

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

It's ambiguous. There are at least 2 solutions, though quite possibly more.

I realized immediately after complaining that it's underdetermined that it has infinite solutions because there are no fucking limits to how complicated a general function can be.

(A,B) |-> A + AB WOW SO HARD

BUT WOW there is nothing suggesting any certain solution.

then it should be 8 + 11(8) = 96

at first I assumed a +1 to the multiple for each one. considering it again, it's more likely that you're supposed to plug in the first number. in which case, yes it's 96.

but then if you add the answer to the first number of the next equation, that also works and gives you 40.

it's a function and there are many solutions.

f(x, y) = (x*y)+x

If my thinking is correct then it is 40.
1+4=5
2+5=7 but it it says =12 the difference is 5 (the sum of the previous line)
3+6=9 but it says =21, the difference of which is also the answer of the previous line.
Following this logic the answer to the final line would be 19+21=40. But it seems vague enough that other patterns are sure to exist.

>2 + 5 = 12
Glorious IQ puzzles

40
>1+4 = 5
>5 + 2 + 5 = 12
>12 + 3 + 6 = 21
>21 + 8 + 11 = 40

It has nothing to do with common core, he's showing you what he thinks the pattern is.

The picture is not trying to say that 2 + 5 = 12, it's a pattern to be solved.

Lrn2think fgt pls

>The picture is not trying to say that 2 + 5 = 12
... but that is what it shows, fgt pls

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

I meant +2 in 2nd line.

kek

Apparently "a+b=c" in faggot speak means "a*(b+1)=c"
1*(4+1)=5
2*(5+1)=12
3*(6+1)=21
8+(11+1)=96

1+4 = 5
2+5 = 12 / (1+2) + (4+5) = 12
3+6 = 21 / (1+2+3) + (4+5+6) = 21
8+11 = 40 / (1+2+3+8) + (4+5+6+11) = 40

I like this one. At least as good as 96

Replace the + operator with * and modify the second operand with ++

Actually 8+(11+1)=20

75?

1 * 4 = 4 + 1 = 5

2 * 5 = 10 + 2 = 12

3 * 6 = 18 + 3 = 21

8 * 11 = 88 + 8 = 96

you have to have a really perverted mind or something to get anything other than 40. i mean after you get 40 after a quick glance, you CAN explore other patterns, but if you don't immediately see 40 then you have issues...

There are infinite patterns which fulfill this.