Answer:
1.08 hours
Explanation:
Distance = speed × time
Time = distance / speed
The time you spend driving is:
t = 50.0 km / (90.0 km/hr)
t = 0.555 hr
The time your friend spends driving is:
t = 50.0 km / (95.0 km/hr)
t = 0.526 hr
The total time is 0.555 hr + 0.526 hr = 1.08 hr.
