Quiz Discussion

A bus covers three successive 3 km stretches at speed of 10 km/hr, 20 km/hr and 60 km/hr respectively. Its average speed over this distance is :

Course Name: Quantitative Aptitude

  • 1] 30 km/hr
  • 2] 25 km/hr
  • 3] 18 km/hr
  • 4] 10 km/hr
Solution
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# Quiz
1
Discuss

A is travelling at 72 km per hour on a highway while B is travelling at a speed of 25 mitres per second. What us the difference in their speeds in mitres per second ?

  • 1]

    \(1\frac{1}{2} \)m/sec

  • 2]

    2 m/sec

  • 3]

    3 m/sec

  • 4]

    5 m/sec

Solution
2
Discuss

A and B start at the same time with speed of 40 km/hr. and 50 km/hr respectively. If in covering the journey A takes 15 min longer than B, the total distance of the journey is :

  • 1] 40 km
  • 2] 48 km
  • 3] 50 km
  • 4] 52 km
Solution
3
Discuss

A thief is noticed by a policeman from a distance of 200 metres the thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km/hr and 11 km/hr respectively. What is the distance between them after 6 minutes ?

  • 1] 100 m
  • 2] 190 m
  • 3] 200 m
  • 4] 150 m
Solution
4
Discuss

The driver of an ambulance sees a school bus 40 m ahead of him after 20 seconds, the school bus is 60 meter behind. If the speed of the ambulance is 30 km/h, what is the speed of the school bus?

  • 1] 10 kmph
  • 2] 12 kmph
  • 3] 15 kmph
  • 4] 22 kmph
Solution
5
Discuss

A plane left half an hour later than the scheduled time and in order to reach its destination 1500 kilometers away in time, it had to increase its speed by 33.33 percent over its usual speed. Find its increased speed.

  • 1] 250 kmph
  • 2] 500 kmph
  • 3] 750 kmph
  • 4] 1000 kmph
  • 5] 1200 kmph
Solution
6
Discuss

A train without stopping travels 60 km/h and with stoppage 40 km/h. What is the time taken for stoppage on a route 300 km?

  • 1] 10 hours
  • 2] 20 hours
  • 3] 5 hours
  • 4] 2.5 hours
Solution
7
Discuss

If A travels to his school from his house at the speed of 3 km/h, then he reaches the school 5 minutes late. If he travels at the speed of 4 km/h, he reaches the school 5 minutes earlier than school time. The distance of his school from his house is:

  • 1] 1 km
  • 2] 2 km
  • 3] 3 km
  • 4] 4 km
Solution
8
Discuss

Two trains 105 meters and 90 meters long, run at the speeds of 45 kmph and 72 kmph respectively, in opposite directions on parallel tracks. The time which they take to cross each other, is:

  • 1] 8 seconds
  • 2] 6 seconds
  • 3] 7 seconds
  • 4] 5 seconds
Solution
9
Discuss

An aeroplane flies from place A to place B at the speed of 500 km/hr. On the return journey, its speed is 700 km/hr. The average speed of the aeroplane for the entire journey is ?

  • 1]

    \(566\frac{2}{3}{ \text{ km/hr}}\)

  • 2]

    \(583\frac{1}{3}{ \text{ km/hr}}\)

  • 3]

    \(583\frac{2}{3}{ \text{ km/hr}}\)

  • 4]

    \(600{ \text{ km/hr}}\)

Solution
10
Discuss

The speeds of three cars are the ratio 2 : 3 : 4. The ratio of the taken by these cars to travel the same distance is :

  • 1] 2 : 3 : 4
  • 2] 4 : 3 : 2
  • 3] 4 : 3 : 6
  • 4] 6 : 4 : 3
Solution
# Quiz