### GC: Math -- An International Language

#### By dlacher on Oct 13, 2005

This week the

**Geek Challenge**is from a local treasure hunt that I took part in a couple of weekends ago. Here goes...

C | O | C | A | ||

+ | C | O | L | A | |

O | A | S | I | S |

Is the answer:

L = 0

I = 7

L = 3

I = 8

I will give out the answer in a few days if no one has all ready answered the question.

For what it's worth.

From the above, S=2 or S=3. Since A+A=S (mod 10), we know S is even, hence S=2.

From the same addition above, and assuming A!=O, we determine A=6.

Since C+C=16, we get C=8.

OK, we now have 1 (carry from A+A) + 8 (C) + L = I, with no carry. This leads to L=0, I=9.

8186 + 8106 = 16292

What was the question?

Posted by

gueston October 14, 2005 at 04:10 AM EDT #You got it. The question was to figure out which of the options was correct:

L = 0

I = 7

L = 3

I = 8

So you got it, L is equal to 0.

dl

Posted by

Dan Lacheron October 14, 2005 at 04:55 AM EDT #