Moriarty, post: 98801, member: 9168 Wrote:What? I believe you belong to 73%, not us.

A2+A2+A-A2=A2+A
A2+A2-A2=A2+A-A
A2=A2

Here I mathematically proved why it is 20. Something kids learn in Russia at age 11. I also doubt that 73% of people are that stupid.

....in here 73% might be true because some kids don't have proper schools. but I guess we gamers play too much puzzles that we can easily do this.
everyone answered 20, but the pic says 73% ppl get this wrong, so I asked that retard.

Moriarty, post: 98807, member: 9168 Wrote:He might.

Here is another Math problem:
9 balls. They all have the same shape, color, etc. The only difference is that one of the balls is a little bit heavier than the rest, by so little, that you can't even tell. The rest 8 are equal. You have a classic scales like the ones in the picture. You can only use the scales twice to figure out which ball is heavier. Go ahead.

this one is very interesting. I think I've heard of this puzzle before but I could only make it in 3 scales. so I analyzed the puzzle again. feels good I did it this time. here's my answer:
.divide the balls by 3 equally. you'll get 3 balls of 3.
.put any 2 groups on the scales and spare 3 balls.
-If the left/right one is heavier(I mean it's lower), take those 3 balls(heavier) and pulverize the rest 6
-If the left & right scales are equal, throw them away and take the 3 balls you spared.
you now have 3 balls which are heavier than the others when grouped up.
.put any 2 balls on the scales and spare the other one.
-If the left one is heavier, that's the ball you've been looking for.
-If the right one is heavier, that's the ball you've been looking for.
-If neither of those are heavier, the ball you've been looking for is the one you spared.

Spartacus, post: 98863, member: 1060 Wrote:

answer is 2 btw.

how about this

9503 =?

10-15 mins.
wow.
the easiest way to knowing it is by looking at repeating numbers. they shouldn't have shown repeating numbers.
1111=0
0000=4
2222=0
3333=0
5555=0
7777=0
9999=4
i noticed that 0 and 9 have round edges, but that wasn't it.
and I also noticed that you can't just randomly hit keys to make the problems, like 10873450264264580467542. do you know why?

i know a problem similar to this. but with a hint that states:
earth is round.
then followed by the numbers.
earth is round. 633757527= 1
earth is round. 1030206122263= 5