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Algebra Difficulty 1.4 Junior Find the answer

How many odd integers are there between 174\frac{17}{4} and 352\frac{35}{2}?

A number or a short expression. Spacing and $ signs are ignored.

Solution

We note that 174=414\frac{17}{4}=4 \frac{1}{4} and 352=1712\frac{35}{2}=17 \frac{1}{2}. Therefore, the integers between these two numbers are the integers from 5 to 17, inclusive. The odd integers in this range are 5,7,9,11,13,155,7,9,11,13,15, and 17, of which there are 7.

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