Question

Mac travels from a to b a distance of 250 miles in 11/2 hours. he returns to a in 4 hours 30 minutes. his average speed is ?

Answer 1

this is the answer I may think that you want

Answer 2

Answer:

50 miles /hr

Step-by-step explanation:

Distance on going = 250 miles

Distance on returning = 250 miles

Total distance = 250+250=500 miles

Time taken on going = 11/2 hours

Time taken on returning = 4.5 hours

Average speed = $\frac{\text{Total distance}}{\text{Total time}}$

Average speed = $\frac{500}{\frac{11}{2}+4.5}$

Average speed = $50$

Hence his average speed is 50 miles /hr