Question 828539
 It takes 30 people 60 working days to build a small bridge. How many people are needed if the bridge is to be built in 40 working days, assuming that they all work at the same 

Days and # of people are inderectly related. 
p = k/d
30 = k/60
k = 180
Equation
p= 180/40
p = 4.5 people




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Cheers,
Stan H.