a train crosses a platform of 200 m in 20 sec , same train crosses another platform of length 350 m in 25 sec . then find the length of the train ?
"length of the train be ‘ x ’ x + 200 / 20 = x + 350 / 25 5 x + 1000 = 4 x + 1400 x = 400 m answer : c"
subtract(multiply(350, divide(20, divide(20, const_3))), multiply(200, divide(25, divide(20, const_3))))