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- stlah 6hari, pkrjaan tersisa 18hari-2hari
=16hari
a = 18 × 8 : 16 = 9org
maka jmlh pkrja tambahn = 9org-8org = 1org
8 orang = 24 hari
24 hari - 6 hari = 18 hari
sisa hari = 18 hari - 2 hari
= 16 hari
Maka,
x/8 = 18/16
16x = 18 x 8
16x = 144
x = 144/16
x = 9 orang
Jadi, banyak pekerja yg harus ditambah adalah 9 - 8 = 1 orang