Quiz Discussion

Deepa rides her bike at an average speed of 30 km/hr and reaches her destination in 6 hours. Hema covers the same distance in 4 hours. If Deepa increases her average speed by 10 km/hr and Hema increases her average speed by 5 km/hr, what would be the difference in their time taken to reach the destination ?

Course Name: Quantitative Aptitude

  • 1] 40 min
  • 2] 45 min
  • 3] 54 min
  • 4] 1 hr
  • 5] None of these
Solution
No Solution Present Yet

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# Quiz
1
Discuss

A long distance runner run 9 laps of a 400 metres track everyday. His timings (in min) for four consecutive days are 88, 96, 89 and 87 respectively. On an average, how many metres/minutes does the runner cover ?

  • 1] 17.78 m/min
  • 2] 40 m/min
  • 3] 90 m/min
  • 4] None of these
Solution
2
Discuss

A car travels the first one third of a certain distance with a speed of 10 km/hr, the next one third distance with a speed of 20 km/hr and the last one third distance with a speed of 60 km/hr. thee average speed of the car for the whole journey is :

  • 1] 18 km/hr
  • 2] 24 km/hr
  • 3] 30 km/hr
  • 4] 36 km/hr
Solution
3
Discuss

Two rifles are fired from the same place at a difference of 11 minutes 45 seconds. But a man who is coming towards the place in a train hears the second sound after 11 minutes. Find the speed of train. (speed of sound = 330 m/s)

  • 1] 72 kmph
  • 2] 36 kmph
  • 3] 81 kmph
  • 4] 108 kmph
  • 5] None of these
Solution
4
Discuss

A person can row \(7\frac{1}{2}\) km an hour in still water. Finds that it takes twice the time to row upstream than the time to row downstream. The speed of the stream is:

 

  • 1] 2 kmph
  • 2] 2.5 kmph
  • 3] 3 kmph
  • 4] 4 kmph
Solution
5
Discuss

The average speed of a train in the onward journey is 25% more than that in the return journey. The train halts for one hour on reaching the destination. The total time taken for the complete to and fro journey is 17 hours, covering a distance of 800 km. The speed of the train in the onward journey is :

  • 1] 45 km/hr
  • 2] 47.5 km/hr
  • 3] 52 km/hr
  • 4] 56.25 km/hr
Solution
6
Discuss

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

  • 1]

    100 m

  • 2]

    150 m

  • 3]

    190 m

  • 4]

    290 m

Solution
7
Discuss

Two men start together to walk a certain distance, one at 4 km/hr and another at 3 km/hr. The former arrives half an hour before the latter. Find the distance :

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

A coolie standing on a railway platform observe that a train going in one direction takes 4 second to pass him. Another train of same length going in opposite direction takes 5 seconds to pass him. The time taken (in seconds) by two train to cross each other will be:

  • 1]

    35 seconds

  • 2]

    36.5 seconds

  • 3]

    \(\frac{{40}}{9}\) seconds

  • 4]

    36 seconds

Solution
9
Discuss

A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km//hr. His average speed for the entire trip is approximately:

  • 1] 10.4 km/hr
  • 2] 10.8 km/hr
  • 3] 11 km/hr
  • 4] 12.2 km/hr
Solution
10
Discuss

A and B walk around a circular track. They start at 8 am from the same point in the opposite directions. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. How many times shall they cross each other before 9.30 am ?

  • 1] 5 times
  • 2] 6 times
  • 3] 7 times
  • 4] 8 times
Solution
# Quiz