Question

Eliana travels at an average speed of 50 mph for 60 miles.

Without stopping, Eliana then travels 130 miles in 2.5 hours.
Find her average speed for the entire journey to 2 dp

Answer 1

51.35 mph to the nearest hundredth.

Explanation:

The time she takes to travel 60 miles = distance / average speed

= 60/50 = 1.2 hours.

Total time taken = 1.2 + 2.5

= 3.7 hours.

Total distance travelled = 60 + 130

= 190 miles.

Therefore average speed for the whole journey

= 190 / 3.7

= 51.35135 mph.