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Indian Institute of Foreign Trade 2014 Solved Paper

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Question : 81

Total: 118

A ferry carries passengers to Rock of Vivekananda and back from Kanyakumari. The distance of Rock of Vivekananda from Kanyakumari is 100 km. One day, the ferry started for Rock of Vivekananda with passengers on board, at a speed of 20 km per hour. After 90 minuts, the crew realized that there is a hole in the ferry and 15 gallons of sea water had already entered the ferry. Sea water is entering the ferry at the rate of 10 gallons per hour. It requires 60 gallons of water to sink the ferry. At what speed should the driver now drive the ferry so that it can reach the Rock of Vivekananda and return back to Kanyakumari just in time before thee ferry sinks? (Current of the sea water from Rock of Vivekananda to Kanyakumari is 2km per hour.)

40 km/hr towards the Rock & 39 km/hr while returning to Kanyakumari
41 km/hr towards the Rock & 38 km/hr while returning to Kanyakumari
42 km/hr towards the Rock & 36 km/hr while returning to Kanyakumari
35 km/hr towards the Rock & 39 km/hr while returning to Kanyakumari

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