A boat takes 5 hours to travel 50 km upstream. If the speed of the current is 5

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Question: A boat takes 5 hours to travel 50 km upstream. If the speed of the current is 5 km/h, what is the speed of the boat in still water?

Options:

Correct Answer: 15 km/h

Solution:

Speed upstream = 50 / 5 = 10 km/h. Speed in still water = Speed upstream + Speed of current = 10 + 5 = 15 km/h.

A boat takes 5 hours to travel 50 km upstream. If the speed of the current is 5 km/h, what is the speed of the boat in still water?

A boat takes 5 hours to travel 50 km upstream. If the speed of the current is 5 km/h, what is the speed of the boat in still water?

Step 1: Understand that the boat travels upstream against the current.
Step 2: The boat takes 5 hours to travel 50 km upstream.
Step 3: Calculate the speed of the boat upstream using the formula: Speed = Distance / Time.
Step 4: Plug in the values: Speed upstream = 50 km / 5 hours = 10 km/h.
Step 5: Know that the speed of the current is given as 5 km/h.
Step 6: To find the speed of the boat in still water, add the speed upstream to the speed of the current.
Step 7: Calculate: Speed in still water = Speed upstream + Speed of current = 10 km/h + 5 km/h = 15 km/h.

Relative Speed – Understanding how the speed of a boat is affected by the current when traveling upstream.
Distance, Speed, and Time Relationship – Applying the formula distance = speed × time to calculate speed.