Quoc Tran Anh Le Coordinator
19/08/2018 at 11:09-
Huy Toàn 8A (TL) 20/08/2018 at 03:3030 machine folding 6 machine is :
30 : 6 = 5 (machine)
So 30 machines to make 30 wheels need the time :
6 . 5 = 30 (minute)
The answer is : 30 minute
Quoc Tran Anh Le selected this answer.