Question 773494
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A piece of work can be done by 5 men in 10 days. After 4 days, 3 men were transferred to another job. how many more
days will the remaining men finish the job?
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What the other person has for an answer makes absolutely NO SENSE. How can it take 2 men, just 6 days to complete a job that
a group of 5 men, who normally take 10 days to complete the job, worked for 4 days, and then left the 2 men to complete? 

5-MAN rate: {{{1/10}}}
1-MAN rate: {{{1/(5)(10) = 1/50}}}
2-MAN rate: {{{2(1/50) = 2/50 = 1/25}}}

Formula: (Time 1 * rate 1) + Time 2 * rate 2) = 1 (entire job)
                               {{{4(1/10) + T(1/25) = 1}}}
                                       {{{2/5 + T/25 = 1}}}
                                      10 + T = 25 ---- Multiplying by LCD, 25 

<font color = red><font size = 4><b>Time taken for remaining 2 men to complete job</font></font></b>, or T = 25 - 10 = <font color = red><font size = 4><b>15 days</font></font></b></pre>