Question
Train P starts from Lucknow to Dehradun at 11:55 am with
an average speed of 22.5 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an average speed of 17.5 m/s. At what time the two trains will meet each other if the distance between Lucknow and Dehradun is 615 Km.ÂSolution
Given: Distance between Lucknow and Dehradun = 615 km Speed of Train P = 22.5 m/s = 22.5 × 3.6 = 81 km/h Speed of Train Q = 17.5 m/s = 17.5 × 3.6 = 63 km/h Train P starts at 11:55 AM Train Q starts at 1:35 PM Step 1: Time gap between starts = 1 hr 40 min = 1 + 40/60 = 5/3 hr Step 2: Distance covered by Train P before Train Q starts = 81 × 5/3 = 135 km Remaining distance = 615 - 135 = 480 km Step 3: Relative speed = 81 + 63 = 144 km/h Time taken to meet = 480 / 144 = 10/3 hr = 3 hr 20 min Step 4: Meeting time = 1:35 PM + 3 hr 20 min = 4:55 PM Final Answer: The two trains meet at 4:55 PM.
Which technology is primarily used to connect devices in a Local Area Network (LAN)?
When did India carry out the first nuclear test at Pokhran?
Which writ is issued when the court finds that there is unlawful arrest of a person?
Which of the following Statements about PM KUSUM is / are True?
I - The PM - KUSUM was launched by the MNRE in 2019 .
II - T...
Under the Bharatmala Pariyojna , an MoU has been signed for swift development of modern Multi Modal Logistics Park (MMLP ) between?
What will be the average kinetic energy per molecule in Sl units for an ideal gas at a temperature of 25°C?
In which of the following states is Govindji Nartanalaya located?
In May 2023, the Supreme Court of India issued a set of directions to strengthen the POSH Act. To which of the following is this Act related?
Few renowned artists of __________ dance style in India are Roshan Kumari, Shovana Narayan, Maya Rao and Kumudini Lakhia.Â
Name the Goa-based airline that became the first to operate a flight to Lakshadweep.
Relevant for Exams:
