Name:_________________________ Date:_______________

Speed(4.1)

Solve the problems below.

1. A man ran 900 metres in 2 minutes. What was his speed in metres per second?

2. A car is travelling at a speed of 50 km/h. How long will it take to travel a distance of 175 km?

3. Nigel left home at 12.10 p.m. and walked to his grandmother's house. He walked at an average speed of 95 m/min. He arrived at 12:25 p.m. What is the distance between his house and his grandmother's house?

4. Ali drove from Town A to Town B at an average speed of 60 km/h. He took 1 hour and 20 minutes to reach Town B. If he were to increase his speed by 20%, how much time would he save?

5. Lucy took 30 minutes to cycle from school to her home at an average speed of 12 km/h. If she wanted to reach home 10 minutes early, what must her average speed be?

6. A motorist travelled at 80 km/h for 120 km and at 60 km/h for another 90 km. Find his average speed for the whole journey?

7. Mr Lim drove at 70 km/h for 1 hour 30 minutes. He then drove another 55 km. If his average speed for the whole journey was 80 km/h, what was his speed for the 55 km journey?

8. Jack travelled of his journey at 60 km/h. For the remaining 25 km he travelled at 30 km/h. How much time did he take for the whole journey?

9. A train left Town A at 8:50 a.m., it passed Town B at 9:30 a.m. and arrived at Town C at 10:30 a.m. The distance between Town A and Town B is 100 km. Between Town B and Town C, the train travelled at 110 km/h. What was the average speed of the train for the whole journey?

10. Mrs Ng and Mrs Lim drove for 4 hours from Singapore to Malacca in separate cars. Mrs Ng drove at a speed of 75 km/h without stopping. Mrs Lim took a stop for 15 minutes midway along the journey, what was her average speed?

©COPYRIGHT 1998 Strategic Thinking Business P/L Singapore ALL RIGHTS RESERVED