CFAT Problem Solving: Time/Rate 2

Question 1

A vehicle travels 240 km in 3 hours. How far will it travel in 5 hours at the same speed?

Accepted Answer

400 km

Answer

320 km

Answer

360 km

Answer

480 km

Question 2

Two soldiers start marching toward each other from points 45 km apart, one at 5 km/h and the other at 4 km/h. How long before they meet?

Accepted Answer

5 hours

Answer

4 hours

Answer

4.5 hours

Answer

9 hours

Question 3

Pump A fills a tank in 6 hours. Pump B fills the same tank in 3 hours. Working together, how long do they take?

Accepted Answer

2 hours

Answer

4.5 hours

Answer

1.5 hours

Answer

3 hours

Question 4

A helicopter covers 560 km in 1 hour 45 minutes. What is its speed in km/h?

Accepted Answer

320 km/h

Answer

280 km/h

Answer

300 km/h

Answer

340 km/h

Question 5

A train leaves at 08:00 at 90 km/h. A second train leaves the same station at 09:30 on the same track at 120 km/h. At what time does the second train catch the first?

Accepted Answer

14:00

Answer

12:00

Answer

13:00

Answer

15:00

Question 6

A runner completes a 10 km race in 50 minutes. What is her average speed in km/h?

Accepted Answer

12 km/h

Answer

10 km/h

Answer

15 km/h

Answer

20 km/h

Question 7

A convoy travels the first half of a 200 km route at 40 km/h and the second half at 60 km/h. What is the average speed for the whole trip?

Accepted Answer

48 km/h

Answer

50 km/h

Answer

52 km/h

Answer

55 km/h