Question
Two trains X and Y start at the same time in the
opposite direction from two points P and Q and arrive at their destinations 100 and 81 hours respectively after their meeting each other. At what speed does the second train Y travel if the first train travels at 108 km/h.ÂSolution
Let the speed and time of two trains be s1 and s2, and t1 and t2. s1/s2 = (t2/t1)1/2 => 108/s2 = 9/10 => s2 = 120 km/hr.
- In which year was the Gandhian Plan proposed?
Who has been appointed as the new Secretary General of ASSOCHAM in 2025?
Which of the following organizations publishes the World Employment and Social Outlook?
- Which nation was formerly led by Khamtai Siphandone, who died in April 2025?
- Which British Governor-General implemented the 'Doctrine of Lapse' policy in India?
Which country recently implemented a ban on wearing burqas, hijabs, or fully covering the face in public places from 1 January 2025?
Which organization has been certified as a ‘Great Place to Work’ for the period 2025-2026?
- Who received the Laureus World Sportsman of the Year Award in 2025?
Bernard Hill, recently in the news, was renowned for his contributions to which industry?
- Which of the following statements about magnesium hydroxide is correct?