Given:
The distance flown was 135 km.
The average speed was 180 km/h.
To find:
The time taken by the airplane.
Solution:
We know that,
[tex]Speed=\dfrac{Distance}{Time}[/tex]
[tex]Time=\dfrac{Distance}{Speed}[/tex]
Putting Distance = 135 and Speed = 180, we get
[tex]Time=\dfrac{135}{180}[/tex]
[tex]Time=0.75[/tex]
The time taken by the airplane is 0.75 hours.
We know that,
1 hour = 60 min
0.75 hour = 0.75 × 60 min
0.75 hour = 45 min
Therefore, the time taken by the airplane is 45 min.
