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Verified answer
6:3=2 jdi mereka akan selsai selama 2 hariTrisno = 6 hari
Alex dan Trisno = t hari
1/t = 1/3 + 1/6
1/t = 2/6 + 1/6
1/t = 3/6
t/1 = 6/3
t = 2 haru