Time and Distance Questions

FACTS  AND  FORMULAE  FOR  TIME  AND  DISTANCE

1.Speed = DistanceTime,  Time=DistanceSpeed, Distance= Speed×Time 

 

2. x km/hr = x×518 m/sec

 

3. x m/sec = x×185 km/hr

4. If the ratio of the speeds of A and B is a:b , then the ratio of the times taken by them to cover the same distance is or b : a

5. Suppose a man covers a certain distance at x km/ hr and an equal distance at y km/hr . Then, the average speed during the whole journey is 2xyx+ykm/hr.

Q:

A bus is running at a speed of 90 kmph. What distance will it cover in 20 seconds?

A) 500 m B) 450 m
C) 180 m D) 600 m
 
Answer & Explanation Answer: A) 500 m

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Q:

A car can cover 350 km in 4 hrs. If its speed is decreased by 12.5 kmph. How much time does the car take to cover a distance of 450 kms.

A) 6 hrs B) 5 hrs
C) 4 hrs D) 7 hrs
 
Answer & Explanation Answer: A) 6 hrs

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Q:

The distance between the points (4, 8) and (k,-4) is 13. What is the value of k?

A) 1 B) 3
C) -1 D) -3
 
Answer & Explanation Answer: C) -1

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Q:

To cover a distance of 144 km in 3.2 hours what should be the average speed of the car in meters/second?

A) 12.5 B) 10
C) 7.5 D) 15
 
Answer & Explanation Answer: A) 12.5

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0 1395
Q:

What is the distance between the points (11,-5) and (-1,0)?

A) 169 units B) 12 units
C) 13 units D) 144 units
 
Answer & Explanation Answer: C) 13 units

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2 1392
Q:

The distance between the tops of two building 38 metres and 58 metres high is 52 metres. What will be the distance (in metres) between two buildings?

A) 46 B) 42
C) 44 D) 48
 
Answer & Explanation Answer: D) 48

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0 1388
Q:

A man travelled at 40 kmph. Had he increased his speed by 16 kmph, he would have covered 80 km more in the same time. Find the actual distance travelled?

A) 40 km B) 20 km
C) 30 km D) 48 km
 
Answer & Explanation Answer: B) 20 km

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2 1387
Q:

A thief is stopped by a policeman from a distance of 200 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed
of the thief as 8 km/hr and that of police man as 10 km/hr. How far the thief would have run, before he is over ­taken?

A) 640 metres B) 800 metres
C) 960 metres D) 480 metres
 
Answer & Explanation Answer: B) 800 metres

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