Answer:
A.
Step-by-step explanation:
Answer:
The answer is 150, because 300 / 3 = 100, and 100 + 150 = 150.
Answer:
2.5 hours
Step-by-step explanation:
The product of speed and time is distance. If the distance is the same, then time is inversely proportional to speed. At 60/50 = 6/5 times the speed, the return trip will take 5/6 times the time:
(5/6)(3 hours) = 2.5 hours . . . time for return trip