In a logical deduction puzzle:
Premise 1: All combine harvesters are self-propelled machines.
Premise 2: Some self-propelled machines are equipped with telematics.
Which of the following conclusions can be definitively deduced with certainty?
Options:
(A) All machines equipped with telematics are combine harvesters
(B) Some machines with telematics are self-propelled
(C) No combine harvester can have telematics
(D) Some self-propelled machines are combine harvesters
Answer Key:
B, D
Step-by-Step Solution & Explanation
Premise 1 ('All A are B') implies 'Some B are A' (Option D). Premise 2 ('Some B are C') is symmetrical and implies 'Some C are B' (Option B). Relationships between A and C cannot be definitively asserted.