a train crosses a platform of 180 m in 15 sec , same train crosses another platform of length 250 m in 20 sec . then find the length of the train ?
"length of the train be ‘ x ’ x + 180 / 15 = x + 250 / 20 20 x + 3600 = 15 x + 3750 5 x = 150 x = 30 m answer : a"
subtract(multiply(250, divide(15, divide(15, const_3))), multiply(180, divide(20, divide(15, const_3))))