If a boat can travel 60 km upstream in 5 hours, what is the speed of the current

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Question: If a boat can travel 60 km upstream in 5 hours, what is the speed of the current if the speed of the boat in still water is 12 km/h?

Options:

Correct Answer: 2 km/h

Solution:

Speed upstream = 60 km / 5 h = 12 km/h. Speed of current = Speed in still water - Speed upstream = 12 km/h - 12 km/h = 0 km/h.

If a boat can travel 60 km upstream in 5 hours, what is the speed of the current if the speed of the boat in still water is 12 km/h?

If a boat can travel 60 km upstream in 5 hours, what is the speed of the current if the speed of the boat in still water is 12 km/h?

Step 1: Understand that the boat travels upstream against the current.
Step 2: Calculate the speed of the boat while going upstream. Use the formula: Speed = Distance / Time.
Step 3: Plug in the values: Speed upstream = 60 km / 5 hours.
Step 4: Calculate the speed upstream: 60 km / 5 hours = 12 km/h.
Step 5: Know that the speed of the boat in still water is given as 12 km/h.
Step 6: Use the formula to find the speed of the current: Speed of current = Speed in still water - Speed upstream.
Step 7: Plug in the values: Speed of current = 12 km/h - 12 km/h.
Step 8: Calculate the speed of the current: 12 km/h - 12 km/h = 0 km/h.

Relative Speed – Understanding how the speed of a boat is affected by the current when traveling upstream.
Speed Calculation – Calculating speed using distance and time, and differentiating between upstream and still water speeds.