SOLUTION: a man wants to finish a work in 150days. he employs 200 workers. He discoveres that only a quarter of the work is done in 50days. in order to complete the work on schedule, how man

Question 1068707: a man wants to finish a work in 150days. he employs 200 workers. He discoveres that only a quarter of the work is done in 50days. in order to complete the work on schedule, how many workers must he employ additionally? How can solve this equation? Explain ?

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Work rates, r is for rate of ONE worker. If n workers together, then rate is . If time is t and amount of work is w, then . The unit for rate is .

Two hundred workers each at rate r worked for 50 days and completed one quarter of the whole piece of work:
.
Solve this for r.

Next, the "man" still wants to complete the remaining of the work in 100 days. How many workers needed, n, for this? Note, he already has 200 workers. Let N be how many of the added workers.

You should now already have the value of r.
Solve for N.

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Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
a man wants to finish a work in 150days. he employs 200 workers. He discoveres that only a quarter of the work is done in 50days. in order to complete the work on schedule, how many workers must he employ additionally? How can solve this equation? Explain ?

We have 30,000 "man-days"
At this rate, and with of work remaining and to be completed in 100 days, it'll take
With 200 men already on-board, it'll take an additional
This person (JOGS) wrote a �novel� about this problem, and still, as usual, the answer is so, so WRONG!
OMG! When will he get it together and stop confusing these people and stop giving them incorrect answers? Why is it
that he can�t see when he�s way, way off? He needs to stop because this is making �real� tutors look really, really bad.
This person does not have a clue!!
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