A man traveled a total distance of 1800 km. He traveled one-third of the whole trip by plane and the distance traveled by train is three-fifth of the distance traveled by bus. If he traveled by train, plane and bus, then find the distance traveled by bus?	Choose the correct choice from the following answers.
A) 450 km  B) 850 km  C) 1200 km  D) 750 km  E) None of these
Total distance traveled = 1800 km.   Distance traveled by plane = 600 km.   Distance traveled by bus = x   Distance traveled by train = 3x/5   =&gt; x + 3x/5 + 600 = 1800   =&gt; 8x/5 = 1200 =&gt; x = 750 km.   ANSWER:750 km
<result>D</result>
A man traveled a total distance of 1800 km. He traveled one-third of the whole trip by plane and the distance traveled by train is three-fifth of the distance traveled by bus. If he traveled by train, plane and bus, then find the distance traveled by bus?