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Anybody know the answer??
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Anybody know the answer??

Anybody know the answer??-example-1
User Sergo Pasoevi
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The first one. 1 machine= x 5 mach.=5x. Total time is thus 5x+2/3=1 3/4h. Simply find x by doing 105min-40min/5 and that is 13.
User Vahissan
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