Soal SMA · Soal cerita · Kesulitan 2/5
A school choir is selling tickets to a performance. Adult tickets cost Rp40,000 and student tickets cost Rp25,000. The choir sold 400 tickets and collected Rp13,000,000. How many student tickets were sold?
- A.150 tickets
- B.180 tickets
- C.200 tickets
- D.220 tickets
Kunci jawaban & pembahasan
Jawaban: 200 tickets
Let s be student tickets and a adult tickets. From a + s = 400 and 40,000a + 25,000s = 13,000,000, substituting a = 400 - s gives 16,000,000 - 15,000s = 13,000,000, so 15,000s = 3,000,000 and s = 200.
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