A person is standing at the edge of a slow moving\r\nriver which is 1 km wide. He wishes to retu...

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A person is standing at the edge of a slow moving\r\nriver which is 1 km wide. He wishes to return to the camp ground on the\r\nopposite side of the river for which he may swim to any point on the opposite\r\nbank and then walk for the rest of the distance. The campground is 1 km away\r\nfrom the point on the opposite bank directly across from where he starts to\r\nswim. If he swims at the rate of 2 km/hr and walks at the rate of 3 km/hr,\r\nthe minimum time taken by him is approximately\n0.6 hr (b) 0.7 hr (c) 0.8 hr \r\n(d) 0.9 hr
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Subject: MATHS
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