Ghhkgu9121 Ghhkgu9121
  • 11-03-2024
  • Mathematics
contestada

A can do a piece of work in 15 days while B can do it in 10 days. how long will they take together to do it?

a. 6 days
b. 4 days
c. 5 days
d. 9 days

Respuesta :

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