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A. 6 days
B. 8 days
C. 10 days
D. 12 days

2 children = 1 man
(8 children + 12 men ) = 16 men
Now, less men, more days
12 : 16 : 9 : x
x = 16×9/12=12 days

Correct Answer: D. 12 days

Last Updated: February 07, 2020