Class VIII

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then the speed of the first train is:
  1. 70 km/hr
  2. 75 km/hr
  3. 84 km/hr
  4. 87.5 km/hr
A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:
  1. 100 kmph
  2. 110 kmph
  3. 120 kmph
  4. 130 kmph
A man complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.
  1. 220 km
  2. 224 km
  3. 230 km
  4. 234 km
An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1 hours, it must travel at a speed of:
  1. 300 kmph
  2. 360 kmph
  3. 600 kmph
  4. 720 kmph
In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:
  1. 1 hour
  2. 2 hours
  3. 3 hours
  4. 4 hours
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