A policeman chases a thief.
A policeman chases a thief. The speed of the policeman and thief are 10 kmph and 8 kmph, respectively. If the policeman started 15 minutes late, find the time taken by the policeman to catch the thief.
एक पुलिसकर्मी एक चोर का पीछा करता हैं। पुलिसकर्मी तथा चोर की चाल क्रमश: 10 kmph और 8 kmph हैं। यदि पुलिसकर्मी 15 मिनट देर बाद चोर का पीछा करना शुरू करता है, तो पुलिसकर्मी को चोर को पकडंने में कितना समय लगेगा?
Detailed Solution & Logic
60 minutes / मिनट
Speed of policeman = 10 km/h, Speed of thief = 8 km/h
Time delay of policeman = 15 minutes = $ \dfrac{1}{4} $ h
Distance lead of thief = $ 8 \times \dfrac{1}{4} = 2 $ km
Relative speed = 10 - 8 = 2 km/h
Time to catch thief = $ \dfrac{2}{2} $ = 1hour = 60 minutes
Answer: 60 minutes
Similar Practice Questions
A robber steals a man’s bag at 5:00 p.m. and starts running at a speed of 10 km/h. The policeman is informed about the robber at 5:12 p.m. and he starts chasing the thief on a bicycle at a speed of 15 km/h. At what time will the policeman catch the robber?
A robber steals a man’s bag at 5:00 p.m. and starts running at a speed...
Two trains having lengths of 170 m and 480
Two trains having lengths of 170 m and 480 m are running at speeds of...
A train travels the first 200 km of a journey at a speed of 100 km/h and the remaining 150 km at a speed of 75 km/h. What is the average speed (in km/h) of the train for the entire journey?
A train travels the first 200 km of a journey at a speed of 100...
In covering a distance of 30 km, Anmol takes 7 hours more than Nikhil. If Anmol doubles his speed, then he would take 8 hours less than Nikhil. Anmol’s speed is:
In covering a distance of 30 km, Anmol takes 7 hours more than Nikhil. If...
Manoj travels from City A to City B.
Manoj travels from City A to City B. If Manoj drives his car at \(\frac{1}{5}\)...
A gun is fired at a distance of 1.35 km
A gun is fired at a distance of 1.35 km from Mukul. She hears the...
The speed of a stream is 9 km/h.
The speed of a stream is 9 km/h. A boat can go 56 km downstream...