How long will it take him to cross

Reference no: EM13237967

A man sits on the south bank of a 100m wide river that flows due east at 2m/s. The man can swim 3m/s. He wants to cross the river as quickly as possible and land on the north shore at a point 20m downstream from his current position. How long will it take him to cross?

Reference no: EM13237967

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