Question
A contractor planned 24 workers for 30 days. After 10 days, only one-fourth of the work is complete. How many extra workers are needed to finish on time?
Select an option. Your answer will be checked instantly.
Correct Answer: D. 12 workers
Explanation:
Twenty-four workers complete 1/4 in 10 days, so the remaining 3/4 needs 30 equivalent days at the same workforce.
Only 20 days remain, requiring 36 workers, so 12 extra are needed.
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