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Alina and Sophia can finish a plowing job in six hours if they work together. Alina can do the job in 10 hours by herself. How long would it take Sophia to finish the same job a…

Alina and Sophia can finish a plowing job in six hours if they work together. Alina can do the job in 10 hours by herself. How long would it take Sophia to finish the same job a…
asked 189k views
3 votes
Alina and Sophia can finish a plowing job in six hours if they work

together. Alina can do the job in 10 hours by herself. How long would it
take Sophia to finish the same job alone?

asked
User M W
by
8.6k points

1 Answer

4 votes

The answer is 15 hours

Step-by-step explanation:

1. (1/10+1/x)*6=1

2. 6/10+6/x=1

3. x=15

answered
User Rnunes
by
7.5k points
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