Quiz Discussion

There are 8 equidistant points A, B, C, D, E, F, G and H in the clockwise direction on the periphery of a circle. In a time interval t, a person reaches from A to C with uniform motion while another person reaches the point E from the point B during the same time interval with uniform motion. Both the persons move in the same direction along the circumference of the circle and start at the same instant. How much time after the start, will the two persons meet each other ?

Course Name: Java

  • 1] 4t
  • 2] 7t
  • 3] 9t
  • 4] Never
Solution
No Solution Present Yet

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# Quiz
1
Discuss

A man performs \(\frac{2}{15}\) of the total journey by rail, \(\frac{9}{20}\) by bus and the remaining 10 km, on the cycle. His total journey is :

 

  • 1] 31.2 km
  • 2] 38.4 km
  • 3] 32.8 km
  • 4] 24 km
Solution
2
Discuss

A motor car does a journey in 17.5 hours, covering the first half at 30 km/h and the second half at 40 km/h. Find the distance of the journey?

  • 1] 684 km
  • 2] 600 km
  • 3] 624 km
  • 4] 584 km
Solution
3
Discuss

A moving train passes a platform 50 m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/hr) is :

  • 1] 24 km/hr
  • 2] 36 km/hr
  • 3] 40 km/hr
  • 4] 45 km/hr
Solution
4
Discuss

An ant moved for several seconds and covered 3 mm in the first second and 4 mm more in each successive second than its predecessor. If the ant had covered 1 mm in the first second and 8 mm more in each successive second, then the difference between the path it would cover during the same time and actual path would be more than 6 mm but less than 30 mm. find the time for which the ant moved (in seconds).

  • 1] 5 s
  • 2] 4 s
  • 3] 6 s
  • 4] 2 s
  • 5] None of these
Solution
5
Discuss

A boat covers 48 km upstream and 72 km downstream in 12 hours, while it covers 72 km upstream and 48 km downstream in 13 hours The speed of stream is :

  • 1] 2 kmph
  • 2] 2.2 kmph
  • 3] 2.5 kmph
  • 4] 4 kmph
Solution
6
Discuss

A walk at a uniform rate of 4 km an hour; and 4 hr after his start, B bicycles after him at the uniform rate of 10 km an hour. How far from the starting point will B catch A ?

  • 1] 16.7 km
  • 2] 18.6 km
  • 3] 21.5 km
  • 4] 26.7 km
Solution
7
Discuss

From two places, 60 km apart A and B start towards each other at the same time and meet each other after 6 hours. If A traveled with \(\frac{2}{3}\) of his usual speed and B traveled with double his speed they would have met after 5 hours. The speed of A is :

 

  • 1] 4 km/hr
  • 2] 6 km/hr
  • 3] 10 km/hr
  • 4] 12 km/hr
Solution
8
Discuss

Two trains start from a certain place on two parallel tracks in the same direction. The speed of the trains are 45 km/hr and 40 km/hr respectively. The distance between the two trains after 45 minutes will be :

  • 1] 2.500 km
  • 2] 2.750 km
  • 3] 3.750 km
  • 4] 3.25 km
Solution
9
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
10
Discuss

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is:

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