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A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?

4 km/hr
6 km/hr
8 km/hr
Data inadequate
Explanation:
Rate downstream =$ \left(\dfrac{16}{2} \right) $kmph = 8 kmph.
Rate upstream =$ \left(\dfrac{16}{4} \right) $kmph = 4 kmph.
$\therefore$ Speed in still water =$ \dfrac{1}{2} $(8 + 4) kmph = 6 kmph.
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A boat covers a certain distance downstream in 1 hour, while it comes back in 1$ \dfrac{1}{2} $ hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

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A boat can travel with a speed of 12 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

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A boat can travel with a speed of 22 km/hr in still water. If the speed of the stream is 5 km/hr, find the time taken by the boat to go 54 km downstream

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A boat running downstream covers a distance of 22 km in 4 hours while for covering the same distance upstream, it takes 5 hours. What is the speed of the boat in still water?

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In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water in km/hr is:

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