Post a New Question

Math

posted by .

Paul drove from his house to work at an average speed of 40 miles per hour. The drive took him 15 minutes. If the drive home took him 20 minutes and he used the same route in reverse, what was his average speed going home?

  • Math -

    Speed = distance / time

    20 minutes = 20/60 = 1/3 hr

    Speed = 40 miles / (1/3) hr

    Speed = 120 mp/h

    Hence, his average speed returned home is 120 mile per hour.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question