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 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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Q:

A person goes from point N to P and comes back. His average speed for the whole journey is 60 km/hr. If his speed while going from N to P is 40 km/hr, then what will be the speed of the person (in km/hr) while coming back from P to N?

A) 80 B) 100
C) 120 D) 140
 
Answer & Explanation Answer: C) 120

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Q:

The speed of car B is half the speed of car A. If car A covers a distance of 120 km in 1.5 hours, what is the speed of car B?

A) 40 kmph B) 60 kmph
C) 30 kmph D) 50 kmph
 
Answer & Explanation Answer: A) 40 kmph

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Q:

The traffic lights at four different road crossings change after every 15 sec, 18 sec, 27 sec and 30 sec respectively. If they all change simultaneously at 6:10:00 hours, then at what time will they again change simultaneously?

 

A) 6:14:30 hours B) 6:40:00 hours
C) 6:14:00 hours D) 10:40:00 hours
 
Answer & Explanation Answer: A) 6:14:30 hours

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Q:

In what time will Rs.4400 become Rs.4576 at 8% per annum interest compounded half-yearly?

A) 1 year B) 2 years
C) 6 months D) 7 months
 
Answer & Explanation Answer: C) 6 months

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Q:

Pihu and Aayu are running on a circular track of diameter 28m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the same point at the same time in the same direction. When will they meet again for the first time?

A) 8 sec B) 11 sec
C) 13 sec D) 14 sec
 
Answer & Explanation Answer: B) 11 sec

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Q:

Car B is twice as fast as car A. If car A covers 90 km in 2 hours, what is the speed of car B?

A) 90 kmph B) 80 kmph
C) 100 kmph D) 70 kmph
 
Answer & Explanation Answer: A) 90 kmph

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Q:

Josna takes 4 hrs 30 min in walking a distance and riding back to some place where she started. She could walk both ways in 5 hrs 40 min. The time taken by her to ride back both ways is

A) 3 hr 20 min B) 3 hr 35 min
C) 3 hr 45 min D) 3 hr 15 min
 
Answer & Explanation Answer: A) 3 hr 20 min

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