Soal SMP · Soal cerita · Kesulitan 3/5

A farmer has chickens and goats. There are 30 animals in total. If the total number of legs is 80, how many goats are there?

A.10 goats
B.12 goats
C.8 goats
D.15 goats

Kunci jawaban & pembahasan

Jawaban: 10 goats

Let goats = g, chickens = 30−g; legs: 4g + 2(30−g) = 80 → 2g + 60 = 80 → g = 10.

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