SOLUTION: an aeroplane covers a distance of 120 km in 1 hour 20 minutes find the average speed of aeroplane?
Algebra
->
Customizable Word Problem Solvers
->
Travel
-> SOLUTION: an aeroplane covers a distance of 120 km in 1 hour 20 minutes find the average speed of aeroplane?
Log On
Ad:
Over 600 Algebra Word Problems at edhelper.com
Word Problems: Travel and Distance
Word
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Travel Word Problems
Question 712336
:
an aeroplane covers a distance of 120 km in 1 hour 20 minutes find the average speed of aeroplane?
Answer by
jim_thompson5910(35256)
(
Show Source
):
You can
put this solution on YOUR website!
1 hr 20 min = 4/3 hrs
d = rt
120 = r*(4/3)
120/(4/3) = r
r = 120/(4/3)
r = 90
Average Speed: 90 km/hr