Quiz Discussion

The wheel of an engine of 300 cm in circumference makes 10 revolutions in 6 seconds. What is the speed of the wheel (in km/h)?

Course Name: Quantitative Aptitude

  • 1] 18
  • 2] 20
  • 3] 27
  • 4] 36
Solution
No Solution Present Yet

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# Quiz
1
Discuss

A train passes two bridges of length 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is:

  • 1] 80m
  • 2] 90m
  • 3] 200m
  • 4] 150m
Solution
2
Discuss

A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10 km/hr. The average speed will be :

  • 1]

    \(12\frac{1}{2}\) km/hr

  • 2]

    13 km/hr

  • 3]

    \(\frac{1}{8}\) km/hr

  • 4]

    20 km/hr

Solution
3
Discuss

To reach point B from point A at 4 pm, Sara will have to travel at an average speed of 18 kmph. She will reach point B at 3 pm if she travels at an average speed of 24 kmph. At what average speed should Sara travels to reach point B at 2 pm ?

  • 1] 36 km/hr
  • 2] 28 km/hr
  • 3] 25 km/hr
  • 4] 30 km/hr
Solution
4
Discuss

A thief seeing a policeman at a distance of 150 metres starts running at 10 kmph and the policeman gives immediate chase at 12 kmph. When the thief is overtaken the thief has traveled a distance of:

  • 1] 750 m
  • 2] 900 m
  • 3] 800 m
  • 4] 1 km
Solution
5
Discuss

A man crosses a road 250 metres wide in 75 seconds. His speed in km/hr is :

  • 1] 10 km/hr
  • 2] 12 km/hr
  • 3] 12.5 km/hr
  • 4] 15 km/hr
Solution
6
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
7
Discuss

A 6 × 6 grid is cut from an 8 × 8 chessboard. In how many ways can we put two identical coins, one on the black square and one on a white square on the grid, such that they are not placed in the same row or in the same column?

  • 1] 216 ways
  • 2] 324 ways
  • 3] 144 ways
  • 4] 108 ways
Solution
8
Discuss

A man completes a certain journey by a car. If he covered 30% of the distance at the speed of 20kmph. 60% of the distance at 40km/h and the remaining of the distance at 10 kmph, his average speed is:

  • 1] 25 km/h
  • 2] 28 km/h
  • 3] 30 km/h
  • 4] 33 km/h
Solution
9
Discuss

A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

  • 1] 3.6 km/hr
  • 2] 7.2 km/hr
  • 3] 8.4 km/hr
  • 4] 10 km/hr
Solution
10
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
# Quiz