Find the time taken by a boat to travel 80 km with the current, if the speed of the boat in still water is 14 km/h and the speed of the current is 6 km/h ?
Answer & explanation
Correct answer: option 4
We know that,
downstream = Speed of boat + Speed of stream
Given,
Speed of a boat in still water = 14 km/h
Distance covered = 80 km
Speed of the current = 6 km/h
Downstream speed = 14 + 6 = 20 km/h
Let the time taken be = t
\(\frac{80}{20}\)= t
= t = 4 hours