Soal SMP · Soal cerita · Kesulitan 3/5
A bookstore sells novels and comics. A novel costs Rp50,000 and a comic costs Rp30,000. If 10 books are sold for a total of Rp420,000, how many novels were sold?
- A.4 novels
- B.5 novels
- C.6 novels
- D.7 novels
Kunci jawaban & pembahasan
Jawaban: 6 novels
Let novels = n, comics = 10 − n. 50,000n + 30,000(10 − n) = 420,000 → 50,000n + 300,000 − 30,000n = 420,000 → 20,000n = 120,000 → n = 6 novels.
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