Question
A train would take 20 seconds to cross a stationary
pole. If the train was 200m shorter, it would have taken 10 seconds less. Find the speed of the train.Solution
Let the original length of the train = x m ∴ Speed of the original train = x/20 m/s ∴ Length of the shorter train = (x - 200) ∴ speed of the shorter train = (x - 200)/10 m/s Since, both the train are same their speed are also same. ∴ `(x)/20 = (x-200)/10` => 10x = 20x - 4000 => 10x = 4000 => x = 400 ∴ Speed = x/20 = 400/20 = 20m/s
What new feature did RBI introduce on its Retail Direct platform in August 2025 to allow small periodic investments in Treasury Bills?
‘Paired Early Career Fellowship in Applied Research (PECFAR)’ is related to explore opportunities for connecting and networking for research collabo...
Which Indian landmark was illuminated red as part of the Act4Dyslexia campaign?
- India recently signed a $248 million agreement with which Russian company for T-72 tank engines?
Who is the author of the book ‘Quest for Restoring Financial Stability in India’?
Consider the following statements with respect to the data provided by the Department for Promotion of Industry and Internal Trade regarding the FDI flo...
According to a study led by the University of Michigan, what is the projected year by which the rate of groundwater depletion could triple in India if f...
Which of the following information is/are TRUE with respect to the changes made by the Reserve Bank of India in relation to the Small Finance Banks ?
In which year is India's primary energy demand projected to nearly more than double to 38.5 million barrels of oil equivalent per day (mboe/d), accordin...
During the Uttar Pradesh Mango Festival, how many tonnes of mangoes did Chief Minister Yogi Adityanath announce would be exported to Japan and Malaysia?
Relevant for Exams:
