Statements:
Some bikes are cars.
Some cars are motors.
No motor is cycle.
Conclusions:
I. Some cycle are definitely bikes.
II. At least some motors are bikes.
III. All cars being bikes is a possibility.
IV. No bike is cycle.
Some bikes are cars(I) + Some cars are motors(I) ⇒ No conclusion. Hence conclusion I, II and IV does not follow but conclusion I and IV will form a complementary pair. Hence either conclusion I or IV follow. Some bikes are cars(I) ⇒ Conversion ⇒ Some cars are bikes(I) ⇒ Probable conclusion ⇒ All cars being bikes is a possibility.(A). Hence conclusion III follows. ALTERNATE SOLUTION: Minimal possibility: