SOLUTION: A group of men can do a job in as many as thre are men in the group. If the number of men are increased by 5, the no. of days to do the job will be decreased by 4. Find the number

Question 23378: A group of men can do a job in as many as thre are men in the group. If the number of men are increased by 5, the no. of days to do the job will be decreased by 4. Find the number of men in the group...i really need your help!!!
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
A group of men can do a job in as many as there are men in the group. If the number of men is increased by 5, the number of days to do the job will be decreased by 4. Find the number of men in the group. Thanks!
1 solutions
Answer 11344 by venugopalramana(581) About Me on 2005-12-19 11:17:56 (Show Source):
LET X PEOPLE DO THE JOB IN X DAYS....SO IN ONE DAY X PEOPLE CAN DO 1/X JOB...OR..1 PERSON CAN DO IN ONE DAY 1/(X)^2 JOB
5 MORTE MEANS X+5 PEOPLE........X+5 CAN DO IN ONE DAY (X+5)/(X)^2 JOB ...HENCE HEY REQUIRE (X)^2/(X+5) DAYS TO DO 1 JOB..BUT THIS IS GIVEN AS EQUAL TO 4 LESS DAYS OR X-4 DAYS.
(X)^2/(X+5)=X-4
X^2=(X+5)(X-4)=X^2+5X-4X-20
X^2-X^2+X-20=0
X-20=0
X=20...
RELATED QUESTIONS
A group of men can do a job in as many as there are men in the group. If the number of... (answered by venugopalramana)

A group of men can do a job in as many days as there are men in the group. If the number... (answered by ankor@dixie-net.com)

A group of men can do a job in as many days as there are men in the group. If the number... (answered by mananth)

A group of men can do a job in as many days as there are men in the group. If the number... (answered by mananth,MathTherapy)

a job can be done in as many days as there men in the group. if the number of men is... (answered by josgarithmetic,MathTherapy)

The number of men in a tour group is 15 times the number of women. If there are 48 people (answered by tommyt3rd)

A Travel Company has booked in a group of people on a Rock & Roll Cruise leaving from... (answered by ikleyn)

A certain number of men can complete a job in 10 days. if 10 man are absent, the... (answered by josmiceli)

In a group of men, women, boys, and girls, there were 10 more men than boys and 5 more... (answered by Edwin McCravy)