Required 3504

The milling machine makes the part in 20 minutes. On a better machine, it can make 30 parts in 6 hours. By how many percent will the time required to produce one part on a new machine be reduced?

Correct answer:

p =  40 %

Step-by-step explanation:

t1=20 t2=6 60/30=12 p=100 (t1t2)/t1=100 (2012)/20=40%



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