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     EduGorilla 
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    A motorboat covers some distance upstream and downstream in 6 hours. If speed of motorboat in still water is 30 km/h and speed of stream is 10 km/h . Then find the distance covered.

    Options :-

    1. 8 km 
    2. 60 km 
    3. 80 km 
    4. 100 km
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