40 men can complete a work in 40 days. they started the work together. but at the end of each 10th day, 5 men left the job. the work would have been completed in how many days
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40 men complete a work in40 days ,5men left the job then the work would have been completed in 45 days
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Let a man can do 1 unit/ day.
Total work = 40men×40days
= 1600 units
40 men can do the work in 10 days
= 400 units
According to question,
(5men left after 10 days)
35 men can do the work in 10 days
=350 units
30 men can do tlhe work in 10 days
=300
25 men can do the work in 10 days
=250
20 men can do the work in 10 days
=200
men left 20−5=15 and
work left = 1600−1500=100 units
they will complete in 100/15=6 2/3days
Total days =50+6 2/3=56 2/3 days
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