Trains Boats and Streams Practice Test 3 with solutions

Question : 35 of 40

Marks: +1, -0

If the speed of a boat in still water is 5 km/hr and its speed against the current is 2.5 km/hr, then what is its speed in the direction of the current?

7.5 km/hr
12 km/hr
10 km/hr
None of these

Validate

Solution:

Let the speed of the boat downstream = x km/h.
Now, 5 =

1/2 (x+5)

⇒ x = 10 – 2.5 = 7.5 km/hr.

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