olguita82
01.09.2019 •
Mathematics
The number with the same value as 28
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Ответ:
Ответ:
Ответ:
approximately 7 days.
Step-by-step explanation:
Don takes time to complete 4 jobs = 3 days
he completed his job in 1 day =
Lily takes time to complete 5 jobs = 2 days
Lily completed her job in 1 day =
Working together they can complete the job in 1 day
=
=
=
Working together it will take time to complete 25 jobs
= 25 ÷
=
=
=
days
= 6.52 ≈ 7 days
It will take 6.52 or approximately 7 days to complete 25 jobs together.