contestada

Trent can deliver his paper route in 40 minutes, Lois can deliver the same route in 60 minutes. How long will it take if they work together?

Respuesta :

I think it will take 50 minutes because it is in the middle of 40 and 60
Together they will take;
[tex] \frac{1}{40} + \frac{1}{60} [/tex]
=[tex] \frac{3+2}{120} [/tex]
The find reciprocal,
=[tex] \frac{120}{5} [/tex]
=24 minutes