"I never see what has been done; I only see what remains to be done."
- Marie Curie
6.
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:
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.
Speed of first train = (7 x 12.5) km/hr = 87.5 km/hr.
of its actual speed covers 42 km in 1 hr 40 min 48 sec. Find the actual speed of the car.