a 300 meter long train crosses a pla ƞ orm in 39 seconds while it crosses a signal pole in 18 seconds . what is the length of the pla ƞ orm .
explanation : speed = distance / ɵ me = 300 / 18 = 50 / 3 m / sec let the length of the pla ƞ orm be x meters then distance = speed ∗ timex + 300 = 503 ∗ 39 = > 3 ( x + 300 ) = 1950 = > x = 350 meters answer : d
subtract(multiply(divide(300, 18), 39), 300)