Question

Niamh was driving back home following a business trip.
She looked at her sav nav at 17:30
Niamh arrived home at 19:42

Work out the average speed of the car, in mph, from 17:30 to 19:42
You must show all working

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

• 65 mph

Step-by-step explanation:

Speed formula:

• speed = distance / time

Distance = 143 miles

Time is:

• 19:42 - 17:30 = 2 hr 12 min = 2 12/60 hr = 2.2 hr

Speed is:

• 143/2.2 = 65 mph