GC: Math -- An International Language

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.

Comments:

We immediately have O=1.
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 guest on October 14, 2005 at 04:10 AM EDT #

John,

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 Lacher on October 14, 2005 at 04:55 AM EDT #

Post a Comment:
Comments are closed for this entry.
About

dlacher

Search

Archives
« April 2014
SunMonTueWedThuFriSat
  
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
   
       
Today