Soal SMA · Soal cerita · Kesulitan 2/5
A student council sells snacks during an English festival. Regular snacks cost Rp5,000 and special snacks cost Rp8,000. They sold 250 snacks and earned Rp1,640,000. How many special snacks were sold?
- A.100 snacks
- B.120 snacks
- C.130 snacks
- D.150 snacks
Kunci jawaban & pembahasan
Jawaban: 130 snacks
Let s be special snacks and r regular snacks. From r + s = 250 and 5,000r + 8,000s = 1,640,000, substituting r = 250 - s gives 1,250,000 + 3,000s = 1,640,000, so s = 130.
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