Answer: 25 miles
Step-by-step explanation:
Let t represent the time she spent in travelling to the appointment. The return trip took 1/8 hour longer.
It means that the time it took her to return is t + 1/8 = t + 0.125
Distance = speed × time
May drove to an appointment at 50 mph. It means that the distance she travelled on her way to the appointment is 50 × t = 50t miles
Her average speed on the return trip in the afternoon was 40 mph. It means that the distance she travelled on her way back is
40(t + 0.125) = 40t + 5
Since the distance travelled is the same, then
50t = 40t + 5
50t - 40t = 5
10t = 5
t = 5/10
t = 0.5 hour
Distance covered in travelling for the appointment is
50 × 0.5 = 25 miles
