a train crosses a platform of 150 m in 10 sec , same train crosses another platform of length 250 m in 15 sec . then find the length of the train ?
"length of the train be ‘ x ’ x + 150 / 10 = x + 250 / 15 3 x + 450 = 2 x + 500 x = 50 m answer : e"
subtract(multiply(250, divide(10, divide(10, const_3))), multiply(150, divide(15, divide(10, const_3))))