MathDB
MMO 004 Moscow MO 1935 train, bridge, length, speed

Source:

July 17, 2019
algebratimespeed

Problem Statement

A train passes an observer in t1t_1 sec. At the same speed the train crosses a bridge \ell m long. It takes the train t2t_2 sec to cross the bridge from the moment the locomotive drives onto the bridge until the last car leaves it. Find the length and speed of the train.