Answer:
For 3/2 of the speed = 292.5 minutes
For 3/4 of the speed = 146.25 minutes
Step-by-step explanation:
It takes 3hrs 15 minutes to fly from A to B
From A to B = 180minutes + 15 minutes
= 195 minutes (At constant speed)
At constant speed,
If the speed is 3/2 of the original speed,
It will be,
3/2 X (195 minutes) = 585 / 2 = 292.5 minutes
On the other-hand,
If the speed is 3/4 of the original speed,
3/4 X (195 minutes) = 585 / 4 = 146.25 minutes