Question
A policeman noticed a thief at a distance of 500 metres.
The policeman started running and the thief also started running at the same time. The thief is running at a speed of 15 km/h. It took 15 minutes for the policeman to catch the thief. Find the speed of the policeman (in km/h).ÂSolution
Let the speed of the policeman be x km/h. The thief runs at 15 km/h and was 500 meters (0.5 km) ahead. Time taken to catch the thief is 15 minutes = 0.25 hours. Relative speed = x − 15 km/h Distance = 0.5 km Time = 0.25 hours Using the formula: Distance = Speed ×Time 0.5 =(x − 15) × 0.25 0.5/0.25 = x − 15 2 = x − 15 x = 17
Where is the Headquarters of Railway Safety Commission was located in Uttar Pradesh?
Which Marathi author and translator, who won the Sahitya Akademi translation prize in 2013, passed away in July 2024?
Who has been appointed as the brand ambassador for the Fit India Movement (Feb 2024)?
“Eyes on the Solar System” 3D visualization tool is being launched by which of the countries?
What is the time limit for a player who stops dribbling in handball to either pass or shoot?Â
Which district in Uttar Pradesh is known for its 'Hunar Haat' exhibition showcasing traditional crafts?
What growth rate did the IMF project for India for 2024-25?
When is Micro, Small and Medium-sized Enterprises (MSMEs) Day observed in India?
In which place ‘Hemis Festival’ is celebrated annually?Â
Who founded the Slave Dynasty in Delhi Sultanate?
Relevant for Exams:
