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IBPS RRB Officer Prelims 10 Sep 2017 Paper

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Question : 57

Total: 80

A boat travels 65 km downstream in 6 hrs 30 minutes, when it is travelling in a stream (S1). lf this boat travels in another stream (S2 whose speed is 10% more than that of S1 it covers 58 km upstream in 10 hrs. What is the speed of S2? (in km/hr). (Assume the boat's speed in still water in both streams remains the same)

2.2
1.5
1.8
2.4
2

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