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3 years ago

10

Sofia can type the work in 10 hours. Noga can do it in 15 hours. They work together for 4 hours. Then Sofia left and Noga finish

ed the job. How long did it take to do the entire job?

2 answers:

Slav-nsk [51]3 years ago

7 0

Answer:

The answer is 9 hours

Step-by-step explanation:

sweet [91]3 years ago

3 0

Answer:

4 hours

Step-by-step explanation:

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