alleryStart learning →3 workers at equal fixed rates need 10 days. Same hours/day: fewest whole workers to finish within 4 days?
A9
B6
C7
D8
Answer & Solution
Correct answer: D. 8
The job needs 30 worker-days; 30 ÷ 4 = 7.5 workers, so at least eight whole workers are required.
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