Soal SMA · Soal cerita · Kesulitan 2/5
A school is organizing a charity event. They sell adult tickets for $10 and student tickets for $5. They sold a total of 200 tickets and raised $1400. How many student tickets were sold?
- A.80
- B.100
- C.120
- D.140
Kunci jawaban & pembahasan
Jawaban: 120
Let a = adult tickets, s = student tickets. a + s = 200, 10a + 5s = 1400. Substitute a = 200 - s: 10(200-s) + 5s = 1400 → 2000 - 10s + 5s = 1400 → -5s = -600 → s = 120.
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