Word Problem 1
Problem 1 : There are two trains namely T1 and T2, with lengths of 65 m and 55 m respectively, and are running in the same direction with speeds of 20 km/hr and 47 km/hr respectively. The faster train will cross totally the slower one in how many seconds ?
Length of Train T1;
Length of Train T2;
Speed of train T1;
Speed of train T2;
As Train T2 is moving faster than Train T1 so, the net speed by which Train T2 will cross Train T1 is given by;
Because there are 1000 meters in ikm and 3600 seconds in 1 hour, so;
Train T2 while crossing Train T1 with net speed of 7.5 m/sec will cover distance equal to sum of lengths of both trains;
so we use formula;
and for Train T2 net speed;
So. Train T2 will completely cross Train T1 in 16 seconds.
(basic mathematics for general public)