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Verified answer
6]60 potong dalam 3 hari
2 minggu = 2 × 7 hari = 14 hari
Yang dapat ia kerjakan
= 14/3 × 60
= 280 potong (d)
7]
Pertambahan = 2 × lipat setiap tahun
Jumlah penduduk 2009 = 200.000 jiwa
a = 200.000 jiwa
n = 2012 - 2009
n = 3
Jumlah penduduk 2012
= a × 2^n
= 200.000 × 2^3
= 200.000 × 8
= 1.600.000 jiwa (d)
8]
6 liter = 48 km
n liter = 88 km
n = 88/48 × 6
n = 11 liter (a)
9]
p = 90 m
l = 45 m
pg = 30 cm
lg = pg/p × l
lg = 30/90 × 45
lg = 15 cm (d)
10]
60 ekor ayam = 12 hari
membeli lg 20 ayam
jumlah ayam = 60 + 20 = 80 ekor ayam
persediaan makanan tersebut akan habis
= 60/80 × 12
= 9 hari (b)