Stream of consciousness rationale: First find the number of boats eaten by fish: 30 boats * 20% = 6 boats. Then subtract the two groups of boats that were destroyed from the original number to find the number left: 30 boats - 6 boats - 2 boats = 22 boats.
The question and answer pair are described below.
Q: Madison makes 30 paper boats and sets them afloat. 20% are eaten by fish and Madison shoots two of the others with flaming arrows. How many boats are left?
A: 22