correct answer is: d) 16 days

Explanation

Here, Hours and days are Inversely Proportional.
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KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode. days
KaTeX parse error: KaTeX doesn't work in quirks mode. days will be required to complete the work.
Ans: They will take KaTeX parse error: KaTeX doesn't work in quirks mode. days to complete the work.

An alternative way to phrase this particular math query is possible:

1. If a certain number of men can complete a task in 12 days, working 8 hours per day, how many days will it take to complete the task if they work 6 hours per day?
2. Given that a certain number of men can complete a task in 12 days working 8 hours per day, how long will it take to complete the task if they work 6 hours per day?
3. How many days are needed to complete a task if a certain number of men, who can complete it in 12 days working 8 hours per day, work 6 hours per day?