SOLUTION: If 4 people can paint a fence in 3 hours. How many people are needed to complete the job in half an hour?

Question 1141981: If 4 people can paint a fence in 3 hours. How many people are needed to
complete the job in half an hour?

Found 2 solutions by greenestamps, josgarithmetic:
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

Half an hour is one-sixth of 3 hours; so you would need 6 times as many workers.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
If you want an algebraic solution you could start with this idea:

nr, the rate of n workers
x, the time
j, amount of work or quantity of jobs

"paint a fence" is ONE job, j=1.

-----------------can you see a factor of 6 here?

-

------------------twenty-four workers
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