Mrs Chuong leaves home at 08:00 and drives at a speed of 50km/h. After 1/2 hour she reduces her speed to 40km/h and continues at this speed until 09:30. She stops from 09:30 until 10:00 and then returns home at a speed of 60km/h. Use the graph to find the

Question

jhonyy9 · Answer

any idea ? what mean that she drives 1/2 hour at a speed of 50 km/h ? what distance she have made with this speed in a half hour ?
hope this will help you begin the calcule and understanding the way to solve this ...