1km per hour is 1/3 of 3km per hour, so the answer is 1/3 of an hour or 20 minutes.
It depends on how fast you are walking, if you are walking at 6km/h then it will take you an hour to walk 6km. if you are walking at 3km/h then it will take you 2 hours.
3km is always 3km it makes no difference if you run or walk
10 minutes on average
It depends at what speed you drive
At 3 kph, it will take one hour. At 30 kph, it will take six minutes.
For a normally fit and heathly person, about 10 minutes - you should be able to walk 3km in an hour, 1km in 20 minutes and so half a KM in about 10. If it's raining probably longer though
% to ^ minutes
How long it take to walk 1.7
By unit of length and distance and conversion ,we can say that 1 km=1000 m 3km=3000 m
99 ten millionths of a second. It would take sound 8.85 seconds.