Read the given statements and conclusions carefully Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:
Some buses are motorbikes.
All motorbikes are vans
All buses are cars.
Conclusions:
(I) Some cars are vans
(II) Some vans are buses.
(III) Some vans are motorbikes
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. All conclusions I, II and III follow.

Conclusions:
(I) Some cars are vans → Follows (Because all buses are cars, some buses are motorbikes and all motorbikes are vans. So, some cars are vans too)
(II) Some vans are buses → Follows (Because some buses are motorbikes and all motorbikes are vans. So, some vans are buses too)
(III) Some vans are motorbikes → Follows (Because all motorbikes are vans. So, some vans are motorbikes too)