A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to tr

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Question: A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to travel upstream, how far can it go if the current is 2 km/h?

Options:

16 km
20 km
24 km
32 km

Correct Answer: 24 km

Solution:

Speed upstream = Speed in still water - Speed of current = 8 km/h - 2 km/h = 6 km/h. Distance = Speed × Time = 6 km/h × 4 hours = 24 km.

A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to tr

Practice Questions

A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to travel upstream, how far can it go if the current is 2 km/h?

16 km
20 km
24 km
32 km

Questions & Step-by-Step Solutions

A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to travel upstream, how far can it go if the current is 2 km/h?

Step 1: Identify the speed of the boat in still water, which is 8 km/h.
Step 2: Identify the speed of the current, which is 2 km/h.
Step 3: Calculate the speed of the boat when going upstream by subtracting the speed of the current from the speed in still water: 8 km/h - 2 km/h = 6 km/h.
Step 4: Identify the time taken to travel upstream, which is 4 hours.
Step 5: Calculate the distance traveled upstream using the formula: Distance = Speed × Time. Here, Distance = 6 km/h × 4 hours.
Step 6: Perform the multiplication: 6 km/h × 4 hours = 24 km.
Step 7: Conclude that the boat can travel 24 km upstream.

Relative Speed – Understanding how to calculate effective speed when moving against a current.
Distance Calculation – Using the formula Distance = Speed × Time to find the distance traveled.

A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to tr

What’s inside this PDF?

A boat can travel at a speed of 8 km/h in still water. If it takes 4 hours to tr

Practice Questions

Questions & Step-by-Step Solutions

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