Question

john drove a car 100 miles in 1 hour and 45 minutes. He took a rest for 15 minutes. Then he drove for 1 hour with the speed of 56 miles per hour. what was his overall speed for the trip

Answer 1

Average speed for the trip is 52 miles per hour

Explanation:

Given - John drove 100 miles in 1 hour 45 minutes

Rest for 15 minutes

1 hour at 56 miles per hour

So total miles = 100 + 56 = 156 miles

Total time for the trip = 1 hour + 1 hour 45 minutes + 15 minutes rest = 3 hours

Therefore average speed = Distance / Time

= 156 miles / 3 hours = 52 miles per hour