A train over takes 2 persons who are walking in the same direction as train is at 2km/h and 4km/h respectively. The passes them completely in 9 seconds and 10 seconds respectively. Find the length of the train. (In metres)

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Your answer seems reasonable.
Find out if you're right!