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Two workers finish a job in exactly the same time each. If one alone takes 8 hours, together they take:
A4 hours
B6 hours
C8 hours
D16 hours
Answer & Solution
Correct answer: A. 4 hours
1. Each does one eighth an hour.
2. Together that is one fourth an hour.
3. They take 4 hours.
_Source: OpenStax Elementary Algebra, Chapter 8, Solve Uniform Motion and Work Applications._
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