Class VIII

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
A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. The distance (in km) is:
  1. 35
  2. 36 2 3
  3. 37 1 2
  4. 40
Robert is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M.?
  1. 8 kmph
  2. 11 kmph
  3. 12 kmph
  4. 14 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
A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot @ 4 km/hr and partly on bicycle @ 9 km/hr. The distance travelled on foot is:
  1. 14 km
  2. 15 km
  3. 16 km
  4. 17 km
Time Elapsed

HR : MIN : SEC
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