a train crosses a platform of 150 m in 15 sec , same train crosses another platform of length 220 m in 18 sec . then find the length of the train ?
"length of the train be ‘ x ’ ( x + 150 ) / 15 = ( x + 220 ) / 18 5 x + 1100 = 6 x + 900 x = 200 m answer : a"
subtract(multiply(220, divide(15, divide(15, const_3))), multiply(150, divide(18, divide(15, const_3))))