A boat takes 5 hours to travel 60 km upstream. If the speed of the stream is 2 k

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Question: A boat takes 5 hours to travel 60 km upstream. If the speed of the stream is 2 km/h, what is the speed of the boat in still water?

Options:

Correct Answer: 12 km/h

Solution:

Speed upstream = 60/5 = 12 km/h. Speed of the boat in still water = speed upstream + speed of stream = 12 + 2 = 14 km/h.

A boat takes 5 hours to travel 60 km upstream. If the speed of the stream is 2 km/h, what is the speed of the boat in still water?

A boat takes 5 hours to travel 60 km upstream. If the speed of the stream is 2 km/h, what is the speed of the boat in still water?

Step 1: Understand that the boat travels upstream, which means it is going against the current of the stream.
Step 2: The boat takes 5 hours to travel 60 km upstream.
Step 3: Calculate the speed of the boat while going upstream using the formula: Speed = Distance / Time.
Step 4: Plug in the values: Speed upstream = 60 km / 5 hours = 12 km/h.
Step 5: Know that the speed of the stream is given as 2 km/h.
Step 6: To find the speed of the boat in still water, add the speed of the stream to the speed upstream: Speed of the boat in still water = Speed upstream + Speed of stream.
Step 7: Calculate: Speed of the boat in still water = 12 km/h + 2 km/h = 14 km/h.

Relative Speed – Understanding how the speed of a boat is affected by the current of the stream when traveling upstream.
Speed Calculation – Calculating speed using distance and time, and applying it to find the speed in still water.