SOLUTION: 30men can paint an estate in 48hours. after working for 20hours 6men left.how much longer did they take to complete the work.

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Question 1144739: 30men can paint an estate in 48hours. after working for 20hours 6men left.how much longer did they take to complete the work.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39630)   (Show Source): You can put this solution on YOUR website!
If the group is 30 men, and after 20 hours, 6 left, the 24 men remain to finish the job.

r, one man rate
x, time to finish after some men left




-


.
.

Answer by ikleyn(52906)   (Show Source): You can put this solution on YOUR website!
.
(1)  Since 30 men can do the job in 48 hours, their rate of work is   part of job per 1 man per hour.


(2)  After working for 20 hours, 30 men completed   =  of the job;

     hence,  1 -  =  remained to complete.


(3)  How many time will it take for 24 remained men to complete   of the job ?

     Divide the remaining job by  = .  You will get

          remaining time =  =  = 35.


ANSWER.  35 hours after 6 men left out.


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