Pak Chandra membeli kapal motor. Jika kapal motor yang beliau miliki dikendarai dengan kecepatan 32 km per jam dan menempuh jarak 80 km, kapal motor tersebut membutuhkan 24 liter solar. Pada kecepatan yang sama, solar yang dibutuhkan Pak Chandra untuk menempuh perjalanan sejauh 120 km adalah … liter.

Pak Chandra membeli kapal motor. Jika kapal motor yang beliau miliki dikendarai dengan kecepatan 32 km per jam dan menempuh jarak 80 km, kapal motor tersebut membutuhkan 24 liter solar. Pada kecepatan yang sama, solar yang dibutuhkan Pak Chandra untuk menempuh perjalanan sejauh 120 km adalah … liter.
a. 7 1/2
b. 9
c. 12
d. 20

Jawaban : 36 liter -> tidak ada pada pilihan jawaban

Ingat!
Konsep perbandingan senilai
𝑥1 / 𝑥2 = y1 / y2

Diketahui,
32 km per jam, menempuh jarak 80 km membutuhkan 24 liter solar

Ditanyakan,
pada kecepatan yang sama, solar yang dibutuhkan pak chandra untuk menempuh perjalanan sejauh 120 km adalah… liter

Dijawab,
32 km / jam → 80 km → 24 liter
32 km / jam → 120 km → 𝑥 liter

𝑥1 = 80
y1 = 24
𝑥2 = 120

Maka,
𝑥1 / 𝑥2 = y1 / y2
80/120 = 24/y2
y2 = 24 × 120/80
y2 = (24 × 120)/80
y2 = 2.880/80
y2 = 36 liter

Sehingga dapat disimpulkan bahwa, pada kecepatan yang sama, solar yang dibutuhkan pak chandra untuk menempuh perjalanan sejauh 120 km adalah 36 liter.

Oleh karena itu, tidak ada pada pilihan jawaban

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