Work Problems | Numerical Reasoning

1. John takes 6 hours to repair the roof. It takes Jason 12 hours to complete the same job. How long would it take if they worked together?
A. 6 hours                   C. 10 hours       E. 2 hours
B. 4 hours                   D.  5 hours

2. It takes Junrey 4 hours to wash a car. Jerry takes 12 hours to complete the same job. If they wash five cars together, how long would they take?
A. 6 hours                  C. 8 hours        E. 15 hours
B. 10 hours                D. 12 hours

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Solving Math Problems for:
AFPSAT MATH CIVIL SERVICE EXAM
UPCAT LET PNPACAT PMA