Gas pipeline

Worker Molnár excavated the gas pipeline in 15 hours, worker Lakatoš in 12 hours and worker Soukup in 10 hours. After how many hours of joint work will the excavation be completed?

Correct answer:

t =  4 h

Step-by-step explanation:


t•(1/15+1/12+1/10)=1

15t = 60

t = 4

Our simple equation calculator calculates it.



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