You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follow(s) from the given statements
Statements: Some boats are buses.
All trains are buses
Conclusions: I.No train is a boat
II. All buses are trains
III. Some buses are boats
IV)Some trains are boats
1) Either I or IV and III follow
2) Only IV follows
3)Only I and III follows
4) Only III and IV follow
5) None of these

Explanation

1, Either I or IV and III follow