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Solution
- The greatest possible score is 80.
- Yes, the final score could be 0. For example,
There are many ways to get a final score of 0.
- All the given scores are possible except 100 and 37.
Here we show one way to get each score.
There are many other ways.
The greatest possible score
is 80.

This score is possible with
five spins, but not four.
37 = 0 + 20 + 10 + 5 + 1 + 1
or
37 = 0 + 20 + 20 - 1 - 1 - 1

Back to Math Mountain.
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