Soal SMA · Soal cerita · Kesulitan 4/5
A school canteen sells two types of meals: regular and large. The regular meal costs $5 and the large meal costs $8. On a particular day, the canteen sold 120 meals and collected $750. How many large meals were sold?
- A.30
- B.40
- C.50
- D.60
Kunci jawaban & pembahasan
Jawaban: 50
Let x be number of large meals, y regular. x + y = 120, 8x + 5y = 750. Substitute y = 120 - x: 8x + 5(120 - x) = 750 ⇒ 8x + 600 - 5x = 750 ⇒ 3x = 150 ⇒ x = 50. Thus, option C is correct.
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