Time, speed & distance aptitude

Question 1

A speed of 72 km/h is equal to:

Accepted Answer

20 m/s

Answer

25 m/s

Answer

18 m/s

Answer

72 m/s

Question 2

A car goes from P to Q at 40 km/h and returns at 60 km/h. What is its average speed for the round trip?

Accepted Answer

48 km/h

Answer

50 km/h

Answer

45 km/h

Answer

52 km/h

Question 3

Walking at 5 km/h, a student reaches college 10 minutes late. Walking at 6 km/h, she reaches 5 minutes early. How far is the college?

Accepted Answer

7.5 km

Answer

6 km

Answer

8 km

Answer

9 km

Question 4

Two cars start at the same time from towns 360 km apart and drive towards each other at 50 km/h and 70 km/h. After how long do they meet?

Accepted Answer

3 hours

Answer

2.5 hours

Answer

3.5 hours

Answer

4 hours

Question 5

A thief running at 10 km/h is spotted by a policeman 200 m behind him, who chases at 12 km/h. How far will the thief have run before he is caught?

Accepted Answer

1 km

Answer

800 m

Answer

1.2 km

Answer

600 m

Question 6

Walking at 3/4 of his usual speed, a man reaches his office 20 minutes late. What is his usual time for the journey?

Accepted Answer

60 minutes

Answer

45 minutes

Answer

80 minutes

Answer

40 minutes

Question 7

A traveller covers half of a journey at 30 km/h and the other half at 45 km/h, taking 5 hours in total. What is the total distance?

Accepted Answer

180 km

Answer

150 km

Answer

200 km

Answer

160 km

Question 8

Excluding stoppages a bus runs at 60 km/h; including stoppages its average speed is 45 km/h. For how many minutes per hour does the bus stop?

Accepted Answer

15 minutes

Answer

10 minutes

Answer

12 minutes

Answer

20 minutes