A contractor appoints 36 persons who complete 2/3 work in 16 days . To finish remaining work he appoints 12 more persons . In how many days remaining work will complete?
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The required work is to be done in 60 days. But the 30 workers completed 25% of work in 20 days. Therefore
The completed part of work = 25%
The completed work units = 30*20 =600
So 25% of work = 600 units
Total work =2400 units
So to complete the work in time = 40 days to complete the work
Required work units to complete =2400–600
=1800 units.
No of men required to complete 1800 units of work in 40 days = 1800÷40
=45
We have already 30 men. the more men required =45-30=15
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