Multiple Choice QuestionsExcluding stoppages, the speed of a bus is 54 km/hr and including stoppages it is 45 km/hr. For how many minutes does the bus stop per hour?
8
10
12
12
A man walks from one place to another at a speed of 5 km/hr and returns to the starting place at a speed of 3 km/hr. His average speed for the whole journey is
4.5 km/hr
4 km/hr
4.25 km/hr
4.25 km/hr
If Mohan goes to his office from his house at a speed of 16 km/hr, he reaches the office 5 minutes late. If he goes at a speed of 20 km/hr, he reaches 10 minutes earlier than the office time. The distance of his office from his house is
22 km
20 km
18 km
16 km
Two persons ride towards each other from two places 55km apart, one riding at 12 km/h and the other at 10 km/h. When will they be 11 km apart?
2h and 30 min
1h and 30 min
2h
2h
A train 150 m long passes a telegraphic post in 12 seconds. Find the speed of the train.
50 km/h
12.5 km/h
25 km/h
25 km/h
A train leaves station A at 5:00 am and reaches station B at 9:00 am on the same day. Another train leaves station B at 7:00 am and reaches station A at 10:30 am on the same day. The time at which the two trains cross one another is
8:00 am
8:26 am
7:56 am
7:56 am
The speed of a boat in still water is 6km/hr and the speed of the stream is 1.5 km/h. A man rows to a place at a distance of 22.5 km and comes back to the starting point. The total time taken by him is
10 h
4 h 10 min
6h 10 min
8 h
A gun is fired at a distance of 1.34 km from Geeta. She hears the sound after 4 s. The speed at which sound travels is
335 m/s
330 m/s
300 m/s
300 m/s
If I walk at 5km/h, I miss a train by 7 min. However, if I walk at 6 km/h I reach the station 5 min before the departure of the train. The distance between my house and the station is
6.5 km
7 km
6 km
6 km
A gun is fired at a distance of 6.64 km away from Ram, He hears the sound 20 seconds later. Then the speed of sound is
664 m/sec
664 km/sec
332 m/sec
332 m/sec
