Quiz Discussion

Walking \(\frac{3}{4}\) of his normal speed, Rabi is 16 minutes late in reaching his office. The usual time is taken by him to cover the distance between his home and office:

 

Course Name: Java

  • 1] 48 min.
  • 2] 60 min.
  • 3] 42 min.
  • 4] 62 min.
  • 5] 66 min.
Solution
No Solution Present Yet

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# Quiz
1
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
2
Discuss

A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:

  • 1] 35.55 km/hr
  • 2] 36 km/hr
  • 3] 71.11 km/hr
  • 4] 71 km/hr
Solution
3
Discuss

A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 metres ahead of the policeman, then the time required for the policeman to catch the thief will be :

  • 1] 2 minutes
  • 2] 3 minutes
  • 3] 6 minutes
  • 4] 10 minutes
Solution
4
Discuss

A and B travel the same distance at speed of 9 km/hr and 10 km/hr respectively. If A takes 36 min more than B, the distance travelled by each is :

  • 1] 48 km
  • 2] 54 km
  • 3] 60 km
  • 4] 66 km
Solution
5
Discuss

A bus moving at a speed of 45 km/hr catches a truck 150 metres ahead going in the same direction in 30 seconds. The speed of the truck is :

  • 1] 27 km/hr
  • 2] 24 km/hr
  • 3] 25 km/hr
  • 4] 28 km/hr
Solution
6
Discuss

Anna left for city A from city B at 5.20 am. She travelled at the speed of 80 km/hr for 2 hours 15 minutes. After that the speed was reduced to 60 km/hr. If the distance between two cities is 350 kms, at what time did Anna reach reach city A ?

  • 1] 9.20 am
  • 2] 9.25 am
  • 3] 9.35 am
  • 4] 10.05 am
  • 5] None of these
Solution
7
Discuss

Page and Plant are running on a track AB of length 10 metres. They start running simultaneously from the ends A and B respectively. The moment they reach either of the ends, they turn around and continue running. Page and Plant run with constant speeds of 2m/s and 5m/s respectively. How far from A (in metres) are they, when they meet for the 23rd time?

  • 1]

    0 meters

  • 2]

    10 meters

  • 3]

    40 meters

  • 4]

    \(\frac{{60}}{7}\) meters

  • 5]

    None of these

Solution
8
Discuss

Each wheel of a car is making 5 revolutions per second. If the diameter of a wheel is 84 cm, then the speed of the car in cm/sec would be :

  • 1] 420 cm/sec
  • 2] 264 cm/sec
  • 3] 1000 cm/sec
  • 4] 1320 cm/sec
Solution
9
Discuss

A 75 metres long train is moving at 20 kmph. It will cross a man standing on the platform in :

  • 1] 12 seconds
  • 2] 14 seconds
  • 3] 13.5 seconds
  • 4] 15.5 seconds
Solution
10
Discuss

The ratio of speeds of A and B is 2 : 3 and therefore A takes 20 minutes more time than B. What is the ratio of time taken by A and B?

  • 1] 2 : 3
  • 2] 2 : 5
  • 3] 3 : 2
  • 4] 3 : 5
Solution
# Quiz