The speed of a boat in still water is 16 km/hour . It goes 60 km  upstream and return downstream to starting point in 8 hours . Find the speed of the stream.


Answer:

4 km/hour

Step by Step Explanation:
  1. Let the speed of stream be x km/hour.
  2. Thus,
    Downstream speed = (16+x) km/hour
    Upstream speed = (16x) km/hour
  3. Its is given that, total time taken = 8 hours
    So, 6016x+6016+x=860(16+x)+60(16x)(16x)(16+x)=81920256x2=8240256x2=1x2=256240=16x=4 km/hour
  4. Hence, the speed of the stream is 4 km/hour.

You can reuse this answer
Creative Commons License
whatsapp logo
Chat with us