Math Fun Times

1. Last year, the school spent $8,300 for office equipment. This year, it will spend 5 percent less. How much will it spend this year?
$7885

2. The spelling and grammar test was taken by 217 students. Thirty-seven failed. What percent passed?
83%


3. We have a company. We make crap. Some people get paid more than others. * The CEO earns $150,000 a year. She has a nice office and thinks big ideas. * Two top managers earn $100,000 a year for attending meetings, writing memos, etc. * The company has three security guards. They bust heads and carry Tasers. They earn $40,000 a year. * Finally, we have designers/engineers. They do the actual work. We pay them $35,000 and put them in cubicles like zoo animals.
Mean salary? 67,500 Median salary? 40,000
Which is more accurate?
Median, the majority of the employees are around that benchmark, the high salaries of the CEO and managers act as outliers


4. Desperate for revenue, the government decides to increase the tax on beer. The tax on food is 5 percent. But if you buy beer, you pay an extra percent, or a total of 6 percent. Supporters of the tax say this is only a 1 percentage increase; critics say this is a 20 percent increase. Who is right? Both, you are increasing by one % but by 20% of the previous tax

5. a. The city’s budget was cut from $2 million to $1.5 million. What was the percent decrease?25%
b. The city’s budget increased from $1.5 million to $2 million. What was the percent increase?
33%
6. Last year, your property tax bill was $1,152. This year, it rose to $1,275. What’s the percent increase?
11%

7. We want to look at home sales in October.
* House 1 costs $225,000. * House 2 costs $207,000. * House 3 costs $129,000. * House 4 costs $192,000. * House 5 costs $3.2 million.
What’s the mean price?$790600 What’s the median? $207000

8. You and your four roommates have ordered a 16-slice pizza. Because you skipped lunch, it is agreed that you should have a 1/4 share of the total. The roommates divide the remainder equally. How much does each one get? 3 slices

9. Let’s say someone wants to establish a University District. To gain support, he/she needs to establish that safety is a problem in the area. Assume the following:
* Pullman had 183 assaults last year. Spokane had 502. * Spokane has 200,000 people. Pullman has 25,000. Is the average person more likely to be assaulted in Spokane or Pullman? What's the per capita assault rate in each city? Pullman .7% Spokane .2% more likely in Pullman

10. House prices increased 40 percent this year to a median price of $210,000. What was the median house price last year? $150000