Solve It

[Gemmel]

This popped up on my linkedin and has beaten me....

 

3 + 4 = 19

5 + 6 = 41

1 + 3 = ?

[Bearsy]

7..

[Verbal]

=10

[rallyboy]

10.

 

But it wasn't easy!

[Bearsy]

69.

[jawillwill]

4. The first two are wrong. Idiot. Don't overthink, and always check your work. That's the moral of that LinkedIn discussion.

[rpb]

it's 7

[pap]

6

 

If you add 2 to the second operand, you get:-

 

3 + 6

5 + 8

1 + 5

 

Doing that allows you do change the additions (which would never work to produce those results) for multiplications.

 

 

3 x 6 = 18

5 x 8 = 40

1 x 5 = 5

 

Adding 1 to the first two results gives you 19 & 41.

 

Apply the same logic to the last result and you get 6.

[farawaysaint]

10

 

I am the fail though I had to look at a hint.

[farawaysaint]

6

 

If you add 2 to the second operand, you get:-

 

3 + 6

5 + 8

1 + 5

 

Doing that allows you do change the additions (which would never work to produce those results) for multiplications.

 

 

3 x 6 = 18

5 x 8 = 40

1 x 5 = 5

 

Adding 1 to the first two results gives you 19 & 41.

 

Apply the same logic to the last result and you get 6.

 

3 + 4(4) = 19

5 + 6(6) = 41

1 + 3(3) = ?

[Saint Rees]

7.

 

Multiply then add the sum

[pap]

3 + 4(4) = 19

5 + 6(6) = 41

1 + 3(3) = ?

 

Or that, which is loads better

[Bearsy]

3 + 4(4) = 19

5 + 6(6) = 41

1 + 3(3) = ?

 

IS IT NOT EQUALLY TRUE THAT

 

3+4+(3*4) = 19

5+6+(5*6) = 41

1+3+(1*3) = 7

[pap]

IS IT NOT EQUALLY TRUE THAT

 

3+4+(3*4) = 19

5+6+(5*6) = 41

1+3+(1*3) = 7

 

Yes.

 

Good work, Bear.

[farawaysaint]

IS IT NOT EQUALLY TRUE THAT

 

3+4+(3*4) = 19

5+6+(5*6) = 41

1+3+(1*3) = 7

 

In other news, this is a stupid question with multiple answers

[Whitey Grandad]

In other news, this is a stupid question with multiple answers

 

...is the correct answer,

[Weston Super Saint]

In other news, this is a stupid question with multiple answers

 

Which, frankly, describes LinkedIn.

 

Gets more and more like retard facebook everyday.

 

The first time I see a cat video / lolcatz on LinkedIn it will be gone....

[Window Cleaner]

10.

 

But it wasn't easy!

 

Yes it was........kindergarden stuff

 

Think it appears in a selection test for the selection test for the selection test for some big firm or other, but then these lines are preceeded by 1+2=5 which takes away the multiple answers I think.

Edited 7 March, 2015 by Window Cleaner

[Whitey Grandad]

Yes it was........kindergarden stuff

 

Think it appears in a selection test for the selection test for the selection test for some big firm or other, but then these lines are preceeded by 1+2=5 which takes away the multiple answers I think.

 

So somebody has invented a whole new mathematical or logical notation which just happens to look like the traditional one that has been in use for generations. If they are not going to tell us the syntax then any answer is a valid one since we can all make up our own alternatives. These sort of questions should be treated with the disdain that they deserve.

[Verbal]

So somebody has invented a whole new mathematical or logical notation which just happens to look like the traditional one that has been in use for generations. If they are not going to tell us the syntax then any answer is a valid one since we can all make up our own alternatives. These sort of questions should be treated with the disdain that they deserve.

 

Maths is often like that. One of the legacies of Turing (and others) is to think of maths as pattern, and sometimes bits of the pattern are missing.