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22-10-2016
Mathematics

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One person can mow a field in 52 minutes and a second can mow the same field in 40 minutes. how long would it take the two of them to mow the field together?

Respuesta :

22-10-2016

It would be:1/x = 1/40+1/52 = 13+10/520 = 23/520

x = 520/23 = 22.60 minutes

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