Cara cepat
Tambahan Pekerja = Pekerja awal x terhenti / sisa waktu
= 8 x 2 / 16
= 1 orang
Cara panjang
Waktu => pekerja
48 => 8
30 => 8
2 => 0
p => 16
48 x 8 = 30 x 8 + 2 x 0 + p x 16
384 - 240 = 16p
p = 9 orang
Tambahan = 9 - 8 = 1 orang
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Cara cepat
Tambahan Pekerja = Pekerja awal x terhenti / sisa waktu
= 8 x 2 / 16
= 1 orang
Cara panjang
Waktu => pekerja
48 => 8
30 => 8
2 => 0
p => 16
48 x 8 = 30 x 8 + 2 x 0 + p x 16
384 - 240 = 16p
p = 9 orang
Tambahan = 9 - 8 = 1 orang
Kelas : VII SMP
Bab : Perbandingan
Pembahasan :
Hari | Pekerja | Hasil kali
48 | 8 | 384
30 | 8 | 240
16 | 8 + x | 16(8 + x)
384 - 240 = 16(8 + x)
144 = 128 + 16x
16x = 16
x = 1 tambahan pekerja