Quiz Discussion

Two guns were fired from the same place at an interval of 8 minutes. A person approaching the place observes that 5 minutes 52 seconds have elapsed between the hearing of the sound of the two guns. If the velocity of the sound is 330 m/sec, the man was approaching the place at what speed (in km/hr) ?

Course Name: Quantitative Aptitude

  • 1] 24 km/hr
  • 2] 27 km/hr
  • 3] 30 km/hr
  • 4] 36 km/hr
Solution
No Solution Present Yet

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# Quiz
1
Discuss

A thief steals a car at 2.30 pm and drives it at 60 kmph. The theft is discovered at 3 pm and the owner sets off in another car at 75 kmph. When will he overtake the thief ?

  • 1]

    4.30 pm

  • 2]

    4.45 pm

  • 3]

    5 pm

  • 4]

     5.15 pm

Solution
2
Discuss

A train travels at a speed of 30 km/hr for 12 minutes and at a speed of 45 km/hr for the next 8 minutes. The average speed of the train for this journey is :

  • 1] 30 km/hr
  • 2] 36 km/hr
  • 3] 37.5 km/hr
  • 4] 48 km/hr
Solution
3
Discuss

A thief sees a jeep at a distance of 250 m, coming towards him at 36 km/h. Thief takes 5 seconds to realize that there is nothing but the police is approaching him by the jeep and start running away from police at 54 km/h. But police realise after 10 second, when the thief starts running away, that he is actually a thief and gives chase at 72 km/h. How long after thief saw police did catchup with him and what is the distance police had travel to do so?

  • 1] 50 s, 1000 m
  • 2] 65 s, 1150 m
  • 3] 65 s, 1300 m
  • 4] 45 s, 1050 m
  • 5] None of these
Solution
4
Discuss

The distance between two cities A and B is 330 km. A train starts from A at 8 am and travels towards B at 60 km/hr. Another train starts from B at 9 am and travels towards A at 75 km/hr. At what time do they meet ?

  • 1] 10.00 am
  • 2] 10.30 am
  • 3] 11.00 am
  • 4] 11.30 am
Solution
5
Discuss

A and B run a kilometre and A wins by 25 sec. A and C run a kilometre and A wins by 275 m. When B and C run the same distance, B wins by 30 sec. The time taken by A to run a kilometre is :

  • 1] 2 min 25 sec
  • 2] 2 min 50 sec
  • 3] 3 min 20 sec
  • 4] 3 min 30 sec
Solution
6
Discuss

A car takes 15 minutes less to cover a distance of 75 km, if it increases its speed by 10 km/hr from its usual speed. How much time would it take to cover a distance of 300 km using this speed ?

  • 1]

    5 hrs

  • 2]

    \(5\frac{1}{2}\) hrs

  • 3]

    6 hrs

  • 4]

    \(6\frac{1}{2}\) hrs

Solution
7
Discuss

The speed of a motor-boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 minutes. It will come back in:

  • 1] 5 hours 50 minutes
  • 2] 6 hours
  • 3] 6 hours 50 minutes
  • 4] 12 hours 10 minutes
Solution
8
Discuss

A person can row a boat d km upstream and the same distance downstream in 5 hours 15 minutes. Also, he can row the boat 2d km upstream in 7 hours. How long will it take to row the same distance 2d km downstream?

  • 1]

    \(\frac{{3}}{{2}}\) hours

  • 2]

    7 hours

  • 3]

    \(\frac{{29}}{{4}}\) hours

  • 4]

    \(\frac{{7}}{{2}}\) hours

Solution
9
Discuss

A train 100 m long is running at the speed of 30 km/hr. The time (in second) in which it passes a man standing near the railway line is :

  • 1] 10 seconds
  • 2] 11 seconds
  • 3] 12 seconds
  • 4] 15 seconds
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