SOLUTION: if 45 students have a stock of food for 2 months, then how many days the same food will last if 18 students leave ??? ..... answer

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Question 923526: if 45 students have a stock of food for 2 months, then how many days the same food will last if 18 students leave ??? ..... answer
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Uniform Rates type situation, food consumption, but you do not know how much food in any given unit. Just call this 1 lot of food.

This solution process is shown without explanation:

Let r be the consumption rate for 1 student in LOT per MONTHS.
Let t be time in MONTHS (not days) for the lesser quantity of students.

highlight_green%2845r%2A2=1=%2845-18%29r%2At%29.
Solve for t; and make what conversion you want.