An aircraft flies 1350 nmiles in 2h 15mins. What is the average speed?
- 600 nmiles/hour.
- 675 nmiles/hour.
- 150 nmiles/hour.
Explanation from PART66Online
Average speed is distance divided by time. 2 h 15 min is 2.25 hours, because 15 minutes is a quarter of an hour, so speed = 1350 nmiles / 2.25 h = 600 nmiles/hour. One nautical mile per hour is called a knot, so this is the same as 600 knots. Dividing by 2 hours instead would give 675, and 150 is the distance flown in each 15 minutes (1350 / 9), not in an hour.
R
romeshkunder asked · 27 Aug 2013
please explain
Community Comments (2)
R
rajib
29 Aug 2013
Correct answer is 600 nmiles/hour.because 2hr 15 minutes beans 2.25 hour.when you consider one hour as 1 than 15 minutes will be .25.so divide 1350 by 2.25 you will get 600 which is the desired answer for this question.
J
Jordi
15 Jun 2020
i dont understand rajib's answer it confuses me
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