Question

Ann travels from Town A to Town B in 3 hours. She then takes another hour to travel from Town B to Town C. The distance from Town A and Town B is 100 miles. The distances between Town B and Town C is 40 miles. What is Ann's average speed for the whole journey? *

Answer 1

35 miles per hour

Explanation:

Ann travels a total of (100 +40) = 140 miles in (3 +1) = 4 hours. Her average speed is the ratio of these:

speed = distance/time

speed = (140 miles)/(4 hours) = 35 miles/hour