How work is to be finished in 12 days by 20 workers after 8 days it is found that only 1.2 part of the work has been done how much more worker should now be engaged in order to finish the job in time
Answers
Answer:10
Step-by-step explanation:
A work is to be finish in 12 days by 20 workers after 8 it is found that only 1/2 part of the work has been done how many more workers should be engaged in order to finish the job in time?
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This question can be solved in multiple ways. Let's try the easiest method.
Inverse Relation Method:
If the work has to be completed in 12 days, then half the work should be completed in 6 days.
Now, as per the question, half of the work was completed in 8 days. So, the remaining half has to be completed in 4 days. For this , we will need extra Workforce.
Reduction in time = 33.33% (i.e. from 6 days to 4 days).
So, increase in Workforce = 50%
Note: Workforce and Time have an inverese relation. Work = Workforce x Time. So, if time reduces, Workforce has to increase to complete the work.
W=WF×T
W=32WF×T23
So, we can see to keep the work constant, if time reduces to 23rd of itself, workforce increases to 32times of itself.
50% of 20 = 10 Extra men are needed