Question 2
Mr. Wong and Mrs. Wong left their house in the same car for Town P. Mr. Wong drove at a speed of 60km/h. Realizing that he left his lap-top at home, he let Mrs. Wong alight at a bus-stop and drove back to his house. Mrs. Wong walked from the bus. stop at a speed of 4km/h to Town P. It took her 45 minutes to reach Town P. Both Mr Wong and Mrs. Wong arrived Town P at the same time. Find the distance between their house and Town P.
**Editorial note for this self-study exercise:** Assume the car keeps the stated 60 km/h on both the return home and the final journey, the routes are along the same road, and turning or collecting the laptop takes no extra time.
**Editorial note for this self-study exercise:** Assume the car keeps the stated 60 km/h on both the return home and the final journey, the routes are along the same road, and turning or collecting the laptop takes no extra time.