Soal SMA · Soal cerita · Kesulitan 3/5
In a certain town, all engineers are logical. Some logical people are musicians. Which of the following conclusions necessarily follows?
- A.Some engineers are musicians.
- B.All musicians are logical.
- C.Some logical people are not engineers.
- D.No musicians are engineers.
Kunci jawaban & pembahasan
Jawaban: Some logical people are not engineers.
Since all engineers are logical and some logical people are musicians, it is possible that those musicians are not engineers; thus 'some logical people are not engineers' must be true only if there is at least one logical person who is not an engineer. However, the given premises do not guarantee that. Wait, let's re-evaluate: The premises do not force any logical person to be an engineer. There could be logical people who are not engineers. But is it necessary? If all logical people were engineers, then the premises would still hold (some engineers are musicians). So it is not necessary. The
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