Answer:
Solution,
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Men days
8 --------------> 9
1 -------- -----> X( suppose)
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In case of indirect proportion,
[tex] \frac{8}{1} = \frac{x}{9} \\ or \: 1 \times x = 8 \times 9 \: ( \: cross \: multiplication) \\ x = 72 \: days[/tex]
hope this helps...
Good luck on your assignment..