Summer tires

Three tire servants must change the summer tires on six cars in 2 hours. Mark's replacement would take 4.5 hours, Jirka would do it in 3 hours and 10 minutes, and Honza in 4 hours. Will they be able to replace all tires at the desired time?

Correct answer:

t =  1.269 h

Step-by-step explanation:

t=4.51+3+10/601+411=5396841.269 h t<2



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