Working together

One worker performs work in 3 days, the second in 5 days. How much do they work together?

Result

t =  1.875 d

Solution:

t=11/3+1/5=158=1.875 dt=\dfrac{ 1 }{ 1/3 + 1/5 }=\dfrac{ 15 }{ 8 }=1.875 \ \text{d}



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