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A worker finishing in 5 hours and another in 20 hours together do what share of the job each hour?
AOne half
BOne third
COne fourth
DOne fifth
Answer & Solution
Correct answer: C. One fourth
1. The rates are one fifth and one twentieth.
2. Together that is five twentieths.
3. That simplifies to one fourth.
_Source: OpenStax Elementary Algebra, Chapter 8, Solve Uniform Motion and Work Applications._
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