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8.2) 108-45 = 63
63-9 = 54
JUMLAH PEKERJA = 42×63/54
= 49 PEKERJA
JUMLAH PEKERJA TAMBAHAN YAITU 49-42 = 7 ORANG
25/30 = x/60 (Kali silang)
30x = 1500
x = 50 hari
8.2 =
108 = 42
(108-45 = 63) = 42
(63-9=54) = x
= 63/54 = x/42 (Kali silang)
54x = 2646
x = 49 orang
Tambahan pekerja = 49-42 = 7 Orang