HSPT Math : How to do other word problems

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #561 : Hspt Mathematics

How many whole numbers are between \dpi{100} \frac{16}{5}\(\displaystyle \dpi{100} \frac{16}{5}\) and \dpi{100} \frac{50}{7}\(\displaystyle \dpi{100} \frac{50}{7}\)?

Possible Answers:

\dpi{100} 4\(\displaystyle \dpi{100} 4\)

\dpi{100} 3\(\displaystyle \dpi{100} 3\)

\dpi{100} 6\(\displaystyle \dpi{100} 6\)

\dpi{100} 2\(\displaystyle \dpi{100} 2\)

Correct answer:

\dpi{100} 4\(\displaystyle \dpi{100} 4\)

Explanation:

Convert each fraction to a mixed number.

\dpi{100} \frac{16}{5}=3\frac{1}{5}\(\displaystyle \dpi{100} \frac{16}{5}=3\frac{1}{5}\)

\dpi{100} \frac{50}{7}=7\frac{1}{7}\(\displaystyle \dpi{100} \frac{50}{7}=7\frac{1}{7}\)

So how many whole numbers are between \dpi{100} 3\frac{1}{5}\(\displaystyle \dpi{100} 3\frac{1}{5}\) and \dpi{100} 7\frac{1}{7}\(\displaystyle \dpi{100} 7\frac{1}{7}\)?

4, 5, 6, and 7 would fall between these two numbers.  3 would not.  So there are 4 total whole numbers between them.

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