Question : A thief is spotted by a policeman from a distance of 250 m. When the policeman starts the chase, the thief also starts running. Assuming that the speed of the thief is 10 km/h and that of the policeman is 12 km/h, how far would the thief have run before he is caught?

Option 1: 4 km

Option 2: 1.25 km

Option 3: 3 km

Option 4: 2 km

Question : A thief, seeing a policeman from a distance of 120 m, starts running at a speed of 7 km/hr. The policeman chases immediately with a speed of 8 km/hr and the thief is caught. What is the distance run by the thief?

Option 1: 820 m

Option 2: 780 m

Option 3: 840 m

Option 4: 800 m

Question : A boat travels 60 kilometres downstream and 20 kilometres upstream in 4 hours. The same boat travels 40 kilometres downstream and 40 kilometres upstream in 6 hours. What is the speed (in km/hr) of the stream?

Option 1: 24 km/hr

Option 2: 16 km/hr

Option 3: 18 km/hr

Option 4: 20 km/hr

Question : A policeman sees a thief at a distance of 150 m. He starts chasing the thief who is running at a speed of 5 m/sec, while the policeman chases with a speed of 7 m/sec. Find the distance covered by the thief when he is caught by the policeman.

Option 1: 285 m

Option 2: 325 m

Option 3: 375 m

Option 4: 295 m

Question : A train crosses two persons travelling at 4 km/hr and 6 km/hr in the same direction in 12 sec and 14 sec, respectively. The speed of the train is ________.

Option 1: 18 km/hr

Option 2: 26 km/hr

Option 3: 20 km/hr

Option 4: 24 km/hr