SOLUTION: if 8 men take 12 days to assemble 16 machines, how many days will 15 men take to assemble 50 machines

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Question 820312: if 8 men take 12 days to assemble 16 machines, how many days will 15 men take to assemble 50 machines
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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if 8 men take 12 days to assemble 16 machines,
:
Find how many man-days per machine
%288%2A12%29%2F16 = 6 man-days per machine
:
how many days will 15 men take to assemble 50 machines
let d = number of days to do this
15d = 50(6)
15d = 300
d = 300/15
d = 20 days