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Compare the approximate speed per hour of Boat A to Boat B.

7+11+17+26+36 = 97 total knots
2+3+4+6+8 = 23 total hours
97÷23 = 4.2

15+24+34+38+50 = 161 total knots
2+4+6+7+9 = 28 total hours
161÷28 = 5.8

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