A daily train is to be introduced between station A and station B starting from each end at 6 AM and the journey is to be completed in 42 hours. What is the number of trains needed in order to maintain the Shuttle Service?
UPSC CSAT marking
Correct answer: +2.5 marks. Incorrect answer: −1/3 of 2.5 marks (−0.8333 marks). Skipped questions receive 0 marks.