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Answer:
The ratio of milk cartons left over to milk cartons taken is <u>2:3.</u>
Step-by-step explanation:
Given:
In the cafeteria 100 milk cartons were put out for breakfast.
After breakfast there were 40 milk cartons left.
Now, to find the ratio of milk cartons left over to milk cartons taken.
Total cartons of milk put out for breakfast = 100.
<em>Cartons of milk left over after breakfast = 40.</em>
So, to get the cartons of milk taken by subtracting cartons of milk left after breakfast from total cartons of milk put out for breakfast:
<em>Thus, cartons of milk taken for breakfast = 60.</em>
Now, to get the ratio of milk cartons left over to milk cartons taken:
<em>On simplifying it:</em>
Therefore, the ratio of milk cartons left over to milk cartons taken is <u>2:3.</u>