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Time Speed Distance 1/4

19. A thief is spotted by a policeman at a distance of 400 m. If the speed of the thief be 10 km/hr and that of the policeman be 12 km/hr, at what distance will the policeman catch the thief?
a. 2 km
b. 2.2 km
c. 2.4 km
d. 3 km


20. Two persons start walking in opposite directions at 5 km/h and 4 km/h respectively. After how many hours will they be 45 km apart?
a. 4 hrs
b. 5 hrs
c. 6 hrs
d. 8 hrs


21. A theft is reported to a policeman. The thief starts running and the policeman chases him. When the policeman starts chasing, the thief was at a distance of 250 meters. The thief and the policeman run at the speed of 8 km/h and 9 km/h respectively. Find the time the policeman will take to catch the thief.
a. 15 minutes
b. 18 minutes
c. 20 minutes
d. 25 minutes


22. The distance between two stations A and B is 220 km. A train leaves A towards B at an average speed of 80 km/hr. After half a hour, another train leaves B towards A at an average speed of 100 km/hr. Time taken for the trains to meet is:
a. 0.5 hr
b. 0.75 hr
c. 0.8 hr
d. 1 hr


23. The distance between two stations A and B is 220 km. A train leaves A towards B at an average speed of 80 km/hr. After half a hour, another train leaves B towards A at an average speed of 100 km/hr. The distance of the point where the two trains meet, from A is :
a. 120 km
b. 130 km
c. 140 km
d. 150 km


24. Two trains start at the same time from Vijayawada and Madras and proceed towards each other at 16 km/hr and 21 km/hr respectively. When they meet, it is found that one train has travelled 60 km more than the other. The distance between the two stations is :
a. 445 km
b. 444 km
c. 440 km
d. 450 km