SOLUTION: If 9 employees require 15 days to complete a task, how long would it take to do the same work if there were 3 additional employees? Assume that all employees are equally efficient.

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Question 61841: If 9 employees require 15 days to complete a task, how long would it take to do the same work if there were 3 additional employees? Assume that all employees are equally efficient.
Found 2 solutions by still_happy2006, uma:
Answer by still_happy2006(3) (Show Source):
You can put this solution on YOUR website!

9 employees = 15 days, so 3 employees = 5 days. It follows then, that if all employees are equally efficient, bringing in 3 more workers would reduce the time taken by 5 days, making the answer 10 days.

Answer by uma(370) (Show Source):
You can put this solution on YOUR website!
Time taken by 9 employees to complete the task = 15 days.
3 more employees mean that there are 12 employees now.
Time and work are inversely proportional.
So time taken by 12 employees = (9 * 15)/12
= 11.25 days.
WE conclude that more employees need less time to complete the work.

Good Luck!!!