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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
(A) (B) and C, each one of the three.
C, B, A.
"1 " "2 " "3 "
"1 " "2 " "3 "
"1 " "2 " "3 "
"1 " "2 " "3 "
A is to C as D is to E. Therefore:
C = A + B
D = B + C
E = A + D
Thus, if we know any two of the three numbers, we can find the third.
Let's say we are given A and B. Then C is found by adding them together. Once we have C, we add it to B to get D. Finally, we add A and D to get E.