Problema Solution
Christopher drove for 3 hours at a rate of 50 miles per hour and for 2 hours at 60 miles per hour. What was his average speed for the whole journey?
Answer provided by our tutors
The formula for distance is
Distance = Rate × Time
Total distance = 50 × 3 + 60 × 2 = 270
Total time = 3 + 2 = 5
Using the formula