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16 orng mengrjkn dlm 24 hr
mk agr selesai 12 hr :
jmlh pekerj y dibutuhkn = 16x24 / 12 = 32 orng
jd tmbhn pekerja = 32 - 15 = 17 orng
12 hari -------- 24 + x pekerja
12(24 + ) = 16 x 24
288 + 16 = 384
16 = 384 - 288
16 = 96
x =
x = 6
Jadi, tambahan pekerja yang dibutuhkan sebanyak 6 orang