October 2018 1 90 Report
Ardi dapat mengerjakan suatu pekerjaan selama 9 hari, sedangkan Windi dapat menyelesaikan pekerjaan itu 18 hari. Ardi dan Windi jika bersama-sama dapat menyelesaikan pekerjaan itu....hari.
a.14 b.12 c.18 d.6

MOHON DIBANTU YA BESERTA CARA JALANNYA
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