Boats and Streams on Arithmetic Aptitude related Questions and Answers


Question :   A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:
1. 4
2. 5
3. 6
4. 10
Answer :   2 - 5  

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