Logic Problem

[David Baxter PhD]

if:

2 + 3 = 10
7 + 2 = 63
6 + 5 = 66
8 + 4 = 96


then:

9 + 7 = ????

 

[Andy]

16? lol I've never been logical.

 

[David Baxter PhD]

No. Not 16.

 

[Andy]

Well I thought it was a trick question. lol Technically it's 16. Or else it's ????

 

[David Baxter PhD]

It's a logic problem. You can't figure out the "then:" until you figure out the "if:".

 

[Daniel E.]

IF you can't figure out the answer right away, THEN cheat and use Google

 

[Domo]

Is Daniel right or should i try working this out? (Heh i say that like i actually have a chance of getting the answer :lol:, my eyes glaze over just at the thought of numbers)

 

[David Baxter PhD]

Obviosuly I have to change the rules.

The answer isn't enough. You have to show why the answer is correct.

 

[Daniel E.]

Of course I'm right

9 * (9+7) = 9 * 16 = 144

 

[David Baxter PhD]

Of course I'm right

9 * (9+7) = 9 * 16 = 144

Yes.

More completely:

2 + 3 = 10 -> 2 * (2+3) = 10
7 + 2 = 63 -> 7 * (7+2) = 63
6 + 5 = 66 -> 6 * (6+5) = 66
8 + 4 = 96 -> 8 * (8+4) = 96

so:

9 + 7 = 144 -> 9 * (9+7) = 144

 

[Domo]

What the hell are those star thingies? That just looks like gibberish to me :lol:


....yeah i flunked out of maths

 

[Andy]

Yeeesh. I was struggling with adding 9 plus 7. At least I got that right. 15





HEY! I actually get that!

 

[Daniel E.]

What the hell are those star thingies?

A multiplication sign.

 

[Domo]

:haddock:

I am out of this thread before i make an even bigger fool of myself :lol:

 

[Daniel E.]

You're probably more familiar with the "?" sign. Perhaps we should start a poll of which multiplication sign is best

 

[Domo]

Hehe yes i would have understood the X sign.

When at school do you draw little stars? :lol:

Gogo poll!