AlgebraEasyExtra cups within a limit
Algebra practice question
A recipe must use fewer than 12 cups of flour in total. Five cups are already in the bowl. What is the greatest whole number of extra cups that can be added?
Answer: 6
5 + c < 12 gives c < 7, so the greatest whole number is 6.
Common wrong answers
- If you answered 7
- 7 would make 12, which is not fewer than 12.
- If you answered 12
- 12 is the limit, not the extra amount.
- If you answered 17
- 17 adds instead of subtracting.
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