Question

72
persons have enough food for 7 days. If 12 more men join them for how
many days that food will be enough.
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Answer 1

72 X 7 feeding days Equals 504 feeding days, which is reduced to 6 feeding days when the number to share them increases by 12, from 72 to 84..

504 Divided by 84 Equals 6. The answer