Six because you divide 12 by 2
43
The average speed is 66.67 miles per hour.
You've done 600 miles in a total of 12 hours, therefore your average speed was 600/12 = 50 mph.
Assuming the same rate of speed, if it takes 2 people 6 hours to do a job, it will take 1 person 12 hours to do the same job. In each case, the number of work hours (2 x 6, 1 x 12) is the same.
Average speed = Total Distance/Total Time = 30 km/2.5 hours = 12 km/hour.
The father's speed is 3 MPH, so the biker's speed is 6 mph. In 9 hours the biker would travel 54 miles
Given that the average person walks about 3 miles per hour, then it would take them 4 hours to walk 12 miles.
A man hour is the product of a person multiplied by an hour. It is a unit of how long a task would take one person. A task that takes 12 man hours, for example, would take 12 hours for one person to complete, six hours for two people, four hours for three people, three hours for four people, etc. 1 man x 12 hours = 12 man hours 2 men x 6 hours = 12 man hours 3 men x 4 hours = 12 man hours 4 men x 3 hours = 12 man hours
43
The average speed is 66.67 miles per hour.
To calculate the average speed for Tom's entire trip, we can use the formula for average speed, which is total distance divided by total time. Let's assume the total distance is (d). Tom walks half the distance ((d/2)) at 4 mph and runs the other half at 12 mph. The time taken to walk is ((d/2) / 4 = d/8) hours, and the time taken to run is ((d/2) / 12 = d/24) hours. The total time is (d/8 + d/24 = 3d/24 + d/24 = 4d/24 = d/6) hours, so the average speed is (d / (d/6) = 6) mph.
You've done 600 miles in a total of 12 hours, therefore your average speed was 600/12 = 50 mph.
Assuming the same rate of speed, if it takes 2 people 6 hours to do a job, it will take 1 person 12 hours to do the same job. In each case, the number of work hours (2 x 6, 1 x 12) is the same.
=12 to 24 Hours.=
7 hours 12 minutes.
542 miles in 12 hours and 37 minutes equates to an average speed of 42.96 miles per hour.
At 60 MPH average speed, it will take 12 hours.