one hour 15 minutes for a girl that is
20/60=1/3 of one hour 15 * 1/3 = 5 km is the distance he'd cover. Although 4 min/km is NOT walking pace. That's a good running speed.
2.33 km or 1.45 miles.
Average would be about a 10 minute per mile pace, so 30 mins. A decent time is sub 20 minutes.
200 micro secs
To calculate the time it takes for a ship to travel 220 km at a speed of 20 knots, first convert knots to kilometers per hour: 1 knot is approximately 1.852 km/h, so 20 knots is about 37.04 km/h. Then, use the formula time = distance/speed. Thus, time = 220 km / 37.04 km/h, which is approximately 5.94 hours, or about 5 hours and 56 minutes.
your answer will be got by (total distance) divided by ( total time).
The fish's average speed is 2 km/h, as distance divided by time gives you the speed which is 20 km / 10 hours = 2 km/h.
37 minutes
20 km is 10 times longer than 2 km.
The Question is written incorrectly it should be 10km running 3km. While the question is like this you've done 7 extra kilometers but my way makes it 3Hrs and 20 mins.
20 km/h is 12.4274 mph
20 kilometers = 12.4 miles.