Question
Train A when travelling with a speed of 144 km/h crosses
a pole in 6 seconds. Find the time taken by the train A to cross another train B of length 25% more than that of train A which is coming from the opposite direction with a speed of 126 km/h.Solution
Speed of train A = 144 × 5/18 = 40 m/s
Length of train A = 40 × 6 = 240 metres
Length of train B = 1.25 × 240 = 300 metres
Speed of train B = 126 × 5/18 = 35 m/s
Relative speed = 40 + 35 = 75 m/s (opposite direction)
Total distance = 240 + 300 = 540 metres
Desired time = 540/75 = 7.2 seconds
What is the theme of the International Day of Education 2025?
India achieved the presidency of which international administrative body in the month of June 2025?
The Limit for Foreign Portfolio Investments under Voluntary Retention Route (VRR) is set to be enhanced to how much from 01.04.2022 by RBI:
What is the purpose of the recent partnership between SIDBI, C2treds, and UGRO Capital?
What is the repo rate as of February 2025, according to the Reserve Bank of India (RBI)?
Recently Goods and Services Tax network has been included to the account aggregator (AA) network as a financial information provider (FIP) to facilitate...
Which denomination notes will be introduced as plastic currency in India?
Special Drawing Rights (SDR) is an international reserve asset, created by the IMF in which of the following years?
What is the name of RBI’s campaign promoting safe banking practices?
What is the key feature of the SCORE system developed by SAMEER?
