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 Solution
Ben should visit the friend who gets 10 peanuts first. Then he should
go to the other friend with whom he will share equally.
For example, if Ben had 100 peanuts, he would end up with 45.
Going the other way, he would end up with only 40.
In fact, you will notice that Ben always ends up with five more
peanuts when he first visits the friend getting 10 peanuts.
Example:
OR
Back to Math Mountain.
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