Soal SMA · Soal cerita · Kesulitan 2/5
A group of students is fundraising by selling English storybooks. They sold 150 books in total. Hardcover books were sold at Rp60,000 each and paperback books at Rp40,000 each. The total money collected was Rp7,600,000. How many paperback books were sold?
- A.50 books
- B.60 books
- C.70 books
- D.80 books
Kunci jawaban & pembahasan
Jawaban: 70 books
Let p be paperback books and h hardcover books. From p + h = 150 and 40,000p + 60,000h = 7,600,000, substituting h = 150 - p gives 40,000p + 9,000,000 - 60,000p = 7,600,000, so 20,000p = 1,400,000 and p = 70.
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