WBCS.LIVE practice question
A boat can travel with a speed of 10 km/hr in still water. If the speed of the stream is 2 km/hr, what is its downstream speed?
Solve this multiple-choice question and check the correct answer with its explanation below.
Answer options
Correct answer and explanation
Correct answer: 12 km/hr
Explanation: ā Correct Answer: A) 12 km/hr š Explanation: Downstream speed is correctly calculated by simply adding the independent speed of the boat in completely still water to the active speed of the stream current. Therefore, we safely add 10 km/hr and 2 km/hr together. This direct addition results in a total downstream speed of 12 km/hr.