2009 · Q61
A train of length 150 m takes 10 s to cross another train 100 m long coming from the opposite direction. If the speed of first train is 30 km/h. What is the speed of second train?
Elementary MathematicsAlgebra
- A72 km/h
- B60 km/h
- C54 km/h
- D48 km/h
Explanation
Solved; answer B.