Walking at the rate of 4 kmph, a man covers certain distance in 2 hr 45 min. Running at a speed of 16.5 kmph, the man will cover the same distance in what time ?20 min40 min30 min25 min45 min
Question
Walking at the rate of 4 kmph, a man covers certain distance in 2 hr 45 min. Running at a speed of 16.5 kmph, the man will cover the same distance in what time ?20 min40 min30 min25 min45 min
Solution
First, we need to find out the distance the man covers walking at 4 kmph for 2 hours and 45 minutes.
The formula to calculate distance is speed * time.
Here, speed = 4 kmph and time = 2.75 hours (since 45 minutes is 0.75 of an hour).
So, distance = 4 kmph * 2.75 hours = 11 km.
Now, we need to find out how long it will take the man to cover the same distance running at a speed of 16.5 kmph.
The formula to calculate time is distance / speed.
Here, distance = 11 km and speed = 16.5 kmph.
So, time = 11 km / 16.5 kmph = 0.6667 hours.
To convert this time to minutes, we multiply by 60 (since there are 60 minutes in an hour).
So, time = 0.6667 hours * 60 = 40 minutes.
Therefore, running at a speed of 16.5 kmph, the man will cover the same distance in 40 minutes.
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