A ship started sailing S 42 35' W at the rate of 5 kph. After 2 hours, ship B started at the same port going N 46°20' W at the rate of 7 kph. After how many hours will the second ship be exactly north of ship A? A. 3.68 B. 4.03 C. 5.12 D. 4.83

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A: Using formula of common ratio,

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A: Let's find.

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