An airplane

An airplane flies 1440 km in 2 1/4 hours. What is its average speed in km per hour?

Correct answer:

v =  640 km/h

Step-by-step explanation:

s=1440 km t=241=2+41=42 4+1=48+1=49=2.25 h  v=s/t=1440/49=1440:49=1440 94=91440 4=95760=640 km/h

Did you find an error or inaccuracy? Feel free to write us. Thank you!

Tips for related online calculators
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
Need help with mixed numbers? Try our mixed-number calculator.
Do you want to convert velocity (speed) units?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: