If 5 persons can do a job in 30 day then 30 persons with twice efficency how many days this job will do finish
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Answer:
2.5 days
Step-by-step explanation:
5 persons can do in 30 days
30 persons will do in 5 days ( men and days are inversely proportional)
it is given that they have twice efficiency
efficiency and days are inversely proportional
days would be: (1/2)*5
=5/2
= 2.5 days
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