Explain simply why (A) is the correct answer to: A train 90 meters long completely crosses a 200 meters long bridge in 36 seconds. What is the speed of the train is?
Options:
(A) 29
(B) 40
(C) 25
(D) 66
(E) 09. Explanation:
S = (90 + 200)/36 = 290/36 * 18/5 = 29