Question

Brandon is on one side of a river that is 60 m
wide and wants to reach a point 200m downstream on the opposite side as quickly as possible by swimming diagonally across the river and then running the rest of the way. Find the minimum amount of time if Brandon can swim at
2m/s and run at 4m/s. I keep getting 65.83 and that is not the correct answer what am I doing wrong?

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