20-meter-long 39603

Two workers will pave a 20-meter-long sidewalk in 5 days. Determine how long it would take to pave the sidewalk:

a) 4 workers
b) 5 workers
c) 10 workers

Correct answer:

a =  2.5 d
b =  2 d
c =  1 d

Step-by-step explanation:

w=5 2=10  a=w/4=10/4=2.5 d
b=w/5=10/5=2 d
c=w/10=10/10=1 d

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