The information about numbers of workers and the number of days to complete work is given in the following table. Complete the table.
Number of workers and the number of days to complete a work will be inversely proportional because if the number of workers increases the number of days to complete the work will reduce.
When the number of workers
Number of days 
[k = constant]
- (1)
The value of k will remain the same in all the cases
When the number of days 
Number of workers 
Number of workers 
(k=constant)
Number of workers
(from 1)
Number of workers
∴ Number of workers
15 when the number of days is 12
When the number of workers
Number of days 
(from 1)
Number of days 
∴When the number of workers=10, number of days is 18
When the number of days
Number of workers 
Number of workers 
Number of workers 
(from1)
Number of workers
∴When the number of days is 36, the number of workers will be 5
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