Answer:
[tex]\boxed {\tt A. \ 0.2 \ hour}[/tex]
Explanation:
We can find time by dividing the distance by the velocity.
[tex]t=\frac{d}{v}[/tex]
The distance traveled is 120 kilometers and the velocity of the plane is 600 kilometers per hour.
[tex]d= 120 \ km \\v= 600 \ km/hr[/tex]
Substitute the values into the formula.
[tex]t=\frac{120 \ km }{ 600 \ km/hr}[/tex]
Divide. Note the kilometers, or [tex]km[/tex] will cancel each other out.
[tex]t=\frac{120 }{600 \ hr}[/tex]
[tex]t= 0.2 \ hr[/tex]
It will take 0.2 hours for the plane to travel 120 kilometers. Choice A is correct.
