A man rows 18 km downstream in 4 hours and returns in 10 hours. Which statements are correct?

1.Speed against stream = 1.8 km/hr

2.Speed in still water = 3.15 km/hr

3.Speed of stream = 1.35 km/hr

Which of the above statements are correct?

Mathematics 2017 CDS Elementary Mathematics 2017 CDS 2017

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