Time and Distance - General Questions (2)
| 9. | 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. |
||||||||||||||||||||||||||
Answer: Option B Explanation:
|
| 10. | 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: |
|||||||||||||||||||||
Answer: Option A Explanation: Let the duration of the flight be x hours.
|
| 11. | Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour? |
||||||||||||||
Answer: Option B Explanation: Due to stoppages, it covers 9 km less.
|
| 12. | 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: |
|||||||||||||||||||||||||||||||||||||||||
Answer: Option C Explanation: Let speed of the car be x kmph.
|
| 13. | If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is: |
|||||||||||||
Answer: Option A Explanation: Let the actual distance travelled be x km.
|
| 14. | 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: |
||||||||||||||
Answer: Option D Explanation: Distance = (240 x 5) = 1200 km. Speed = Distance/Time Speed = 1200/(5/3) km/hr. [We can write 1
|
hours as 5/3 hours]| 15. | A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour? |
|||||||||||||||||||
Answer: Option B Explanation:
= 2 m/sec. Converting m/sec to km/hr (see important formulas section)
= 7.2 km/hr. |