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A river has a width of 300 meters. If a boat crosses the river at a speed of 15

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Question: A river has a width of 300 meters. If a boat crosses the river at a speed of 15 m/s, how long will it take to cross the river? (2020)

Options:

  1. 10 seconds
  2. 15 seconds
  3. 20 seconds
  4. 25 seconds

Correct Answer: 10 seconds

Exam Year: 2020

Solution: 

Time = Width / Speed = 300 m / 15 m/s = 20 seconds.

A river has a width of 300 meters. If a boat crosses the river at a speed of 15

Practice Questions

Q1
A river has a width of 300 meters. If a boat crosses the river at a speed of 15 m/s, how long will it take to cross the river? (2020)
  1. 10 seconds
  2. 15 seconds
  3. 20 seconds
  4. 25 seconds

Questions & Step-by-Step Solutions

A river has a width of 300 meters. If a boat crosses the river at a speed of 15 m/s, how long will it take to cross the river? (2020)
  • Step 1: Identify the width of the river, which is 300 meters.
  • Step 2: Identify the speed of the boat, which is 15 meters per second.
  • Step 3: Use the formula for time, which is Time = Width / Speed.
  • Step 4: Plug in the values: Time = 300 meters / 15 meters per second.
  • Step 5: Calculate the result: 300 divided by 15 equals 20.
  • Step 6: Conclude that it will take the boat 20 seconds to cross the river.
  • Speed, Distance, and Time – This question tests the understanding of the relationship between speed, distance, and time, specifically how to calculate time taken to travel a certain distance at a constant speed.
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