Engineering Board Exam Reviewer · Work Problems · easy
Marlon, Kimbert and Meryl can mow the lawn in 4, 6 and 7 hours respectively. What fraction of the yard can they mow in 1 hour if they work together?
- 47/84
- 45/84
- 37/84
- 27/84
Answer
A. 47/84
Solution
x = 1/4+1/6+1/7 = 47/84.
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