The total sales at Happy Puppy Pet Depot is calculated by adding the sales from Store A to those from Store B. Both stores sold an equal number of pets in 2002. If the sales of pets in Store A increased by 34% in 2003, by approximately what percent did sales decrease in Store B during the same year?
-
Solution
Store A and Store B both sold an equal number of pets in 2002, meaning both sold 4,500 animals. If the total number of pets sold by Store A then increases by 34%, Store A sold 6,030 animals in 2003.The total number of animals sold in 2003 was 10,000, meaning store B sold only 3,970 pets. Use the percent change formula: \(\frac{4500-3970}{4500}\)×100 to get choice (A).
By approximately what percent did total cat sales change from 2002 to 2003?
-
Solution
Total cat sales in 2002 can be calculated as 10% of 9,000, or 900 total cats. In 2003, the figure is 9% of 10,000, or 900 total cats. Therefore, the same number of cats was sold in both years.The answer is choice (A).
From 2002 to 2003, what was the increase in the total number of goldfish sold?
-
Solution
The number of goldfish sold in 2002 was 35% of 9,000, or 3,150 goldfish.The number of goldfish in 2003 was 40% of 10,000, or 4,000.To find the difference, simply subtract: 4,000 – 3,150 = 850.
In 2003, how many categories of animals individually accounted for more than 20% of the depot’s annual sales?
-
Solution
2
In 2003, only dogs and goldfish each accounted for more than 20% of the store’s total sales
If the nine individually listed countries (excluding those characterized as “All Others”) are ranked from highest to lowest by number of departures in 1990, how many countries ranked lower in 2001 than in 1990?
-
Solution
3
The chart already ranks the countries in order in 1990. In 2001, the rankings were: US—1st; UK—2nd; France—5th; Germany—4th; Japan—7th;Brazil—6th;China—3rd; Spain—9th; and Australia—8th. Only three countries—France, Japan, and Spain—ranked lower in 2001 than they did in 1990, making the answer 3.
By approximately what percent did the total number of departures increase from 1990 to 2001?
-
Solution
Round the values and use the percent change formula to approximate the answer; ignore the millions, because they are in both numbers.The percent change formula is
1⁄3 × 100, so \(\frac{18-12}{12}\)×100=50%.
What was the approximate percent increase in Springfield’s total income from 1992 to 1998?
-
Solution
The percent change formula is \(\frac{differnce}{original}\)×100, so,\(\frac{532-433}{433}\times 100=\frac{99}{433}\times 100\), or slightly less than a quarter (25%).The answer is choice (B).
In 1992, approximately what percent of Springfield’s income came from income tax?
-
Solution
In 1992, Springfield collected $151,000 from income tax out of its total income of $433,000;\(\frac{\$ 151,000}{\$ 4333,000}\) is slightly greater than
1⁄3, so select choice (D).
In 1998, the amount that the city of Springfield spent on safety was how many times the amount the city spent on recreation facilities?
-
Solution
In 1998, Springfield spent $150,000 on safety and $50,000 on recreation facilities; hence, the city spent three times as much on safety as on recreation facilities. If you selected choice (B), you may have used the wrong chart.
In the year when the median price of new yachts sold by Company J was closest to the median price of refurbished yachts sold by Company J, how many thousand refurbished yachts did the company sell?
-
Solution
First, use the median price chart to determine that 2002 was the year when the median prices of new and refurbished yachts were most similar. Next, use the data line for refurbished yachts in the other chart to determine that the number of yachts sold by Company J that year was less than halfway from 6,000 to 7,000; only choice (A) falls in the acceptable range.