Soal SMA · Soal cerita · Kesulitan 4/5
Read the following text. A school library conducted a reading survey among 200 students. The results showed that 60% of the students read fiction, 45% read non-fiction, and 25% read both fiction and non-fiction. Based on this data, which of the following conclusions is most logically valid?
- A.The number of students who read neither fiction nor non-fiction is 40.
- B.The number of students who read only fiction is 70.
- C.The number of students who read only non-fiction is 50.
- D.The total number of students who read at least one type of book is 170.
Kunci jawaban & pembahasan
Jawaban: The number of students who read neither fiction nor non-fiction is 40.
Using the inclusion-exclusion principle: 60% of 200 = 120 read fiction, 45% = 90 read non-fiction, and 25% = 50 read both. So, at least one = 120 + 90 - 50 = 160. Neither = 200 - 160 = 40. Thus, option A is correct.
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