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Grade 6

1997 Team Round 3

Team Rounds in the Math Masters Competitions are timed (15 minutes), and calculators are allowed.

Note: Test Preparation Packets containing hundreds of problems (fact drills, individual and team) from previous years' competitions can be ordered from Math Masters of Minnesota.

Questions 1-3 refer to the spinner shown here.

1. What is the measure of the central angle of the sector labeled Blue?

2. The spinner is spun once. Find the probability that the spinner stops on Red.
Express the answer as a fraction in simplest form.

3. The spinner is spun once. Find the probability that the spinner stops on White or Red.
Express the answer as a fraction in simplest form.

4. The class average on a mathematics test was 22 out of 25. The 20 girls in the class scored a total of 450 points. What was the average number of points scored by the 10 boys in the class?
The bar graph below shows the amount of school funding for a district over a five-year period.

Note: The bar for 1984 has not yet been constructed.

Use the information presented above to answer questions 5-7.

5. Find the mean amount (in millions of dollars) of school funding for the years 1980-1982.

6. What was the percent increase in school funding from 1980 to 1981?

7. Funding for the 1984 year represented a 10 percent increase over the funding for the 1983 year. How much money (in millions of dollars) was spent on school funding in 1984?

The pie charts below present information about the age distribution of American workers in 1988 and the expected age distribution of American workers in the year 2000.

Use the above information to answer questions 8-10.

8. With regard to its representation in the workforce, which age group is expected to change the most from 1988 to the year 2000?

9. What percent of American workers are expected to be older than 34 years in the year 2000?

10. What is the measure of the central angle for the sector labeled 16-24 years in the 1988 chart?

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