So I gave this problem to a female with a degree in mathematics (wife) and you get a whole new perspective. "You only have what is presented. You are not looking for some general solution. You only have to deal with what is on the paper. The answer is 40!"
I say 'Splain it Lucy" and here is what I get (with some sarcasm):
1+4=5
2+5=1+2+4+5=12
3+6=1+2+3+4+5+6=21
8+11=1+2+3+8+4+5+6+11=40
How can you argue with that?
C.G.B.
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