Trains Boats and Streams Practice Test 3 with solutions

Question : 10 of 40

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A boat covers a distance of 30 km downstream in 2 hours while it takes 6 hours to cover the same distance upstream. What is the speed of the boat in km per hour?

Validate

Solution:

Speed of the downstream =

{30}/2

= 15 km/hour
Speed upstream =

{30}/6

= 5 km/hour
Speed of the boat =

{15+5}/{2}

{20}/2

= 10 km/hour

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