A car is running at a speed of 64 km/h to cover a certain distance in 40 min. At what speed should the car run to reduce the time of the journey to 30 min?

A car is running at a speed of 64 km/h to cover a certain distance in

1.	A car is running at a speed of 64 km/h to cover a certain distance in 40 min. At what speed should the car run to reduce the time of the journey to 30 min?
A.	84.78 km/h
B.	74.65 km/h
C.	54 km/h
D.	85.33 km/h
Answer» E.

Discussion

No Comment Found

Related MCQs

Places A and B are 396 km apart. Train X leaves from A for B and train Y leaves from B for A at the same time on the same day on parallel tracks. Both trains meet after \(5\frac{1}{2}\) hours. The speed of Y is 10 km/h more than that of X. What is the speed (in km/h) of Y?
A train of length 150 meters passes a pole in 15 seconds and crosses another train of the same length travelling in opposite direction in 12 seconds. The speed of the second train would be :
A swimmer can swim at a speed of 0.5 m/s in still water. How much distance will he cover in 25 minutes?
A train travels at a speed of 72 km/h. How may metres will it travel in 12 min?
A man swims downstream 12 kmph and upstream 4 kmph; his speed in still water is:
A boat takes half time in rowing a certain distance downstream than upstream. What is the ratio of the speed of boat in still water to the speed of current?
A train of length 212 m is running at 45 km/h. In what time (in seconds) will it cross a platform of length 188 m?
A man in a train notices that he can count 21 telephone posts in one minute. If they are known to be 50 meters apart, then at what speed is the train running?
A train X travelling at 60 km/h overtakes another train Y, 225 m long, and completely passes it in 72 seconds. If the trains had been going in opposite directions, they would have passed each other in 18 seconds. The length (in m) of X and the speed (in km/h) of Y are, respectively:
Raja and Gopal are at a distance of 48 km. They start at the same time to meet each other traveling at a rate of 7 km/hr and 5 km/hr respectively. They meet after the time _________.

A car is running at a speed of 64 km/h to cover a certain distance in 40 min. At what speed should the car run to reduce the time of the journey to 30 min?

Discussion

No Comment Found

Related MCQs

Reply to Comment