Deck 5: Percents

Question 1

Write 0.87 $\%$ as a decimal.

A) 0.87
B) 870
C) 0.0087
D) 0.087
E) 87

Answer 1

0.0087

Question 2

Write $\frac { 18 } { 25 }$ as a percent.

A) 18 $\%$
B) 72 $\%$
C) 720 $\%$
D) 180 $\%$
E) 0.72 $\%$

Answer 2

72 $\%$

Question 3

Write 165 $\%$ as a fraction and as a decimal.

A) $1 \frac { 13 } { 20 }$ ; 0.65
B) $1 \frac { 13 } { 20 }$ ; 1.65
C) $\frac { 33 } { 200 }$ ; 0.165
D) $\frac { 33 } { 200 }$ ; 1.65
E) $1 \frac { 13 } { 20 }$ ; 165

Answer 3

$1 \frac { 13 } { 20 }$ ; 1.65

Question 4

Write $\frac { 3 } { 7 }$ as a percent. Round to the nearest tenth of a percent, if necessary.

A) 8.6 $\%$
B) 214.3 $\%$
C) 428.6 $\%$
D) 42.9 $\%$
E) 0.9 $\%$

Question 5

Write $3 \frac { 5 } { 6 }$ as a percent. Write the remainder (if there is a remainder) in fractional form.

A) $3 \frac { 5 } { 6 }$ $\%$
B) $383 \frac { 1 } { 3 }$ $\%$
C) $3 \frac { 1 } { 3 }$ $\%$
D) $300 \frac { 5 } { 6 }$ $\%$
E) $383 \frac { 5 } { 6 }$ $\%$

Question 6

Write 2 $\%$ as a decimal.

A) 0.02
B) 0.2
C) 2
D) 20
E) 200

Question 7

Write 8.85 as a percent.

A) 8.85 $\%$
B) 88.5 $\%$
C) 885 $\%$
D) 8850 $\%$
E) 0.885 $\%$

Question 8

Write $\frac { 1 } { 3 }$ as a percent. Round to the nearest tenth of a percent, if necessary.

A) 1.7 $\%$
B) 166.7 $\%$
C) 0.3 $\%$
D) 16.7 $\%$
E) 33.3 $\%$

Question 9

Write 60 $\%$ as a fraction and as a decimal.

A) $\frac { 6 } { 1 }$ ; 0.6
B) $\frac { 3 } { 5 }$ ; 60
C) $\frac { 6 } { 1 }$ ; 60
D) $\frac { 3 } { 5 }$ ; 0.6
E) $\frac { 3 } { 5 }$ ; 6000

Question 10

Write 85 $\%$ as a fraction and as a decimal.

A) $\frac { 17 } { 2 }$ ; 85
B) $\frac { 17 } { 20 }$ ; 85
C) $\frac { 17 } { 20 }$ ; 0.85
D) $\frac { 17 } { 2 }$ ; 0.85
E) $\frac { 17 } { 20 }$ ; 8500

Question 11

Write 9.25 $\%$ as a decimal.

A) 92.5
B) 0.00925
C) 9.25
D) 0.0925
E) 925

Question 12

Write $2 \frac { 2 } { 7 }$ $\%$ as a fraction.

A) $\frac { 4 } { 25 }$
B) $\frac { 3 } { 175 }$
C) $\frac { 1 } { 50 }$
D) $\frac { 4 } { 175 }$
E) $\frac { 16 } { 7 }$

Question 13

Write $3 \frac { 5 } { 8 }$ as a percent. Round to the nearest tenth of a percent, if necessary.

A) 362.5 $\%$
B) 0.3 $\%$
C) 300 $\%$
D) 3.6 $\%$
E) 237.5 $\%$

Question 14

Write 0.8 as a percent.

A) 80 $\%$
B) 800 $\%$
C) 0.8 $\%$
D) 0.08 $\%$
E) 0.008 $\%$

Question 15

Write 7.1 $\%$ as a decimal.

A) 71
B) 0.071
C) 7.1
D) 0.71
E) 710

Question 16

Write 58.9 $\%$ as a decimal.

A) 5890
B) 0.0589
C) 58.9
D) 5.89
E) 0.589

Question 17

Write 4.459 as a percent.

A) 0.4459 $\%$
B) 44.59 $\%$
C) 4.459 $\%$
D) 0.04459 $\%$
E) 445.9 $\%$

Question 18

Write 0.25 as a percent.

A) $0.025 \%$
B) $2.5 \%$
C) 0.25 $\%$
D) 25 $\%$
E) 0.0025 $\%$

Question 19

Write $\frac { 4 } { 35 }$ as a percent. Write the remainder (if there is a remainder) in fractional form.

A) $\frac { 3 } { 7 }$ $\%$
B) $12 \frac { 3 } { 7 }$ $\%$
C) $11 \frac { 3 } { 7 }$ $\%$
D) $8 \frac { 3 } { 35 }$ $\%$
E) $\frac { 35 } { 4 }$ $\%$

Question 20

Among Caucasians, the American Red Cross lists the following blood types for the U.S. population: 31 $\%$ have O+, 8 $\%$ have O-, 32 $\%$ have A+, 9 $\%$ have A-, 7 $\%$ have B+, 2 $\%$ have B-, and 2 $\%$ have AB+ (Source: http://www.redcrossblood. org/learn-about-blood/blood-types). Based on these percents, what percent of the U.S. population have blood type AB-?

A) 9 $\%$
B) 12 $\%$
C) 13 $\%$
D) 11 $\%$
E) 10 $\%$

Question 21

Which is larger: 4 $\%$ of 80, or 65 $\%$ of 8?

A) 65 $\%$ of 8
B) 4 $\%$ of 80

Question 22

What is $11 \frac { 1 } { 9 }$ $\%$ of 1620?

A) 180
B) 80
C) 170
D) 230
E) 200

Question 23

What is 275 $\%$ of 74?

A) 2.035
B) 2035
C) 20350
D) 20.35
E) 203.5

Question 24

Which is smaller: 95 $\%$ of 17, or 12 $\%$ of 75?

A) 95 $\%$ of 17
B) 12 $\%$ of 75

Question 25

What is 0.45 $\%$ of 603? Round your answer to the nearest hundredth.

A) 0.27
B) 27.14
C) 2.71
D) 2713.50
E) 271.35

Question 26

What is 10 $\%$ of 10.25? Round your answer to the nearest hundredth.

A) 0.01
B) 10.25
C) 0.10
D) 1.02
E) 102.50

Question 27

What percent of 20 is 9?

A) 29 $\%$
B) 9 $\%$
C) 20 $\%$
D) 55 $\%$
E) 45 $\%$

Question 28

At the One a Day Factory, rotten apples are discarded by Jeana,an apple inspector. On a given day, Jeana found that 3.2 $\%$ of the 50,000 pounds of apples were rotten.
a) How many pounds of apples were rotten?
b) How many pounds of apples were not rotten?

A) a) 1600 lb; b) 51,600 lb
B) a) 51,600 lb; b) 1600 lb
C) a) 48,400 lb; b) 1600 lb
D) a) 1600 lb; b) 48,400 lb
E) a) 15,625 lb; b) 34,375 lb

Question 29

Betty Jo bought a new car and the sales tax of 9 $\%$ of the cost of her car was added to the purchase price of $25,500.
a) How much was the sales tax?
b) What is the total cost of Betty Jo's car, including sales tax?

A) a) $230; b) $25,730
B) a) $2295; b) $27,795
C) a) $2295; b) $25,730
D) a) $230; b) $27,795
E) a) $240; b) $25,730

Question 30

Suppose that five in ten couples disagree on a particular matter. What percent of couples disagree on the matter?

A) 200.00 $\%$
B) 5 $\%$
C) 0.5 $\%$
D) 500 $\%$
E) 50 $\%$

Question 31

If $\frac { 1 } { 8 }$ of an alcohol solution is alcohol, what percent of the solution is water?

A) 12.50 $\%$
B) 17.50 $\%$
C) 52.50 $\%$
D) 87.50 $\%$
E) 35.00 $\%$

Question 32

What percent of 80 is 96?

A) 100 $\%$
B) 96 $\%$
C) 80 $\%$
D) 120 $\%$
E) 20 $\%$

Question 33

A dilution ratio can indicate the concentration of a solution and many times is expressed as a percent. What is the percent concentration of a solution having a dilution ratio of $\frac { 1 } { 40 }$ ?

A) 0.025 $\%$
B) 2.5 $\%$
C) 0.25 $\%$
D) 25 $\%$
E) 1.25 $\%$

Question 34

Suppose that 68 billion pounds of a product were produced in the United States last year, of which 12 billion pounds were wasted. What percent of production was wasted? Round to the nearest tenth of a percent.

A) 0.2 $\%$
B) 1.8 $\%$
C) 17.6 $\%$
D) 176.5 $\%$
E) 1764.7 $\%$

Question 35

What is 44.7 $\%$ of 645? Round your answer to the nearest hundredth.

A) 28.83
B) 2883.15
C) 288.32
D) 28831.50
E) 2.88

Question 36

The statistics shown in the graph at the below are from the 2007 National Health Interview Survey (NHIS), an annual in person survey of Americans regarding their health-and illness-related experiences. The Complementary and Alternative Medicine (CAM) section gathered information on 23,393 adults aged 18 and older. (Source: http://nccam.nih.gov /news/camstats/2007/ ) Use the following graph of the 23,393 adults included in the survey, how many use Meditation as part of CAM therapy? Round to the nearest whole number.

A) 2099
B) 2299
C) 2199
D) 2399
E) 1999

Question 37

What is 77 $\%$ of 26?

A) 20.02
B) 200.2
C) 2.002
D) 0.2002
E) 2002

Question 38

What is 0.2 $\%$ of 5000?

A) 100
B) 10
C) 1
D) 0.1
E) 1000

Question 39

The statistics shown in the graph at the below are from the 2007 National Health Interview Survey (NHIS), an annual in person survey of Americans regarding their health-and illness-related experiences. The Complementary and Alternative Medicine (CAM)section gathered information on 23,393 adults aged 18 and older.(Source: http://nccam.nih.gov /news/camstats/2007/ ) In the United States, according to this survey, approximately 38% of adults are using some form of complementary and alternative medicine. If the adult population of the United States is approximately 208,000,000 people, how may adults are estimated to use some form of complementary and alternative medicine?

A) 59,040,000 adults
B) 99,040,000 adults
C) 79,040,000 adults
D) 69,040,000 adults
E) 89,040,000 adults

Question 40

A commonly used artificial hip joint replacement consists of a cobalt-chrome alloy combination. The cobalt-chrome replacement consists of 34 $\%$ cobalt and 19 $\%$ chrome with the balance made up of a mix of other metals. If the hip joint replacement weighs 18 ounces, how many ounces of cobalt and chrome are in the replacement? Round Your answer to the nearest tenth.

A) 5.1 ounces cobalt; 2.8 ounces chrome
B) 4.8 ounces cobalt; 2.7 ounces chrome
C) 6.1 ounces cobalt; 3.4 ounces chrome
D) 4.4 ounces cobalt; 2.5 ounces chrome
E) 4.1 ounces cobalt; 2.3 ounces chrome

Question 41

A one-serving size bag of potato chips contains 70 calories from fat, which represents 40 $\%$ of the total calories of the chips in the bag. How many calories are there in this bag of chips?

A) 175 calories
B) 185 calories
C) 195 calories
D) 165 calories
E) 160 calories

Question 42

In a recent clinical study, 75 adults were found to have high blood pressure. This represents 35 $\%$ of those who were screened. How many patients were screened?

A) 211 patients
B) 217 patients
C) 213 patients
D) 215 patients
E) 214 patients

Question 43

An alcohol solution (alcohol and water) has a total volume of 249 milliliters. 24 milliliters of that solution is alcohol. What percent of the solution is water?

A) 0.96 $\%$
B) 9.04 $\%$
C) 9.64 $\%$
D) 90.36 $\%$
E) 91.09 $\%$

Question 44

If you are on a 2500-calorie diet, what percent of the total recommended amount of Potassium is in one serving of this cereal? Round to the nearest tenth of a percent.

A) 2.7 $\%$
B) 3.7 $\%$
C) 3.3 $\%$
D) 1.9 $\%$
E) 1.7 $\%$

Question 45

The table at the below contains nutrition information about a breakfast cereal.The daily recommended number of calories for a 190-pound man is 2310 calories. What percent, to the nearest tenth of a percent, of the daily recommended number of calories is provided by one serving of this cereal with 2 $\%$ milk?

A) 9.7 $\%$
B) 8.7 $\%$
C) 8.9 $\%$
D) 8.4 $\%$
E) 7.9 $\%$

Question 46

If 347 milliliters of an IV 10 $\%$ dextrose solution are infused, how many grams of dextrose does the patient receive when the infusion is complete?

A) 31 grams
B) 39 grams
C) 34 grams
D) 36 grams
E) 35 grams

Question 47

A manufacturer of an anti-inflammatory drug claims that the drug will be effective for 6 hours. An independent testing service determined that the drug was effective for only 85 $\%$ of the length of time claimed by the manufacturer. Find the length of time the drug will be effective as determined by the testing service.

A) 5.5 hours
B) 5.1 hours
C) 5.7 hours
D) 4.5 hours
E) 4.7 hours

Question 48

Although surgical complications of tonsillectomies are rare, last year, 19 out of Dr. Juarez's 530 tonsillectomy patients had complications after surgery. What percent of Dr. Juarez's patients did not have complications after surgery?Round to the nearest tenth of a percent.

A) 94.6 $\%$
B) 96.4 $\%$
C) 98.4 $\%$
D) 99.4 $\%$
E) 97.7 $\%$

Question 49

In a recent survey, 32 $\%$ of those polled sleep 7 hours every night. If 73 people responded that they sleep 7 hours each night, how many people participated in the survey?

A) 240 people
B) 244 people
C) 228 people
D) 238 people
E) 243 people

Question 50

Dieticians recommend that a person get a maximum of 39 $\%$ of their calories each day from fat. Based on an 1815-calorie daily diet, what is the maximum number of calories that should come from fat? Round to the nearest whole number.

A) 693 calories
B) 698 calories
C) 708 calories
D) 709 calories
E) 728 calories

Question 51

During a recent blood drive 14 donors had type O blood. This was 40 $\%$ of the total number of donors who gave blood that day. How many donors participated in the blood drive?

A) 25 donors
B) 35 donors
C) 22 donors
D) 15 donors
E) 10 donors

Question 52

The county soccer club spent $3520 for soccer camp expenses. This amount is 80 $\%$ of the money it collected. What is the total amount of money that the club collected?

A) $ 440
B) $ 4400
C) $ 44,000
D) $ 3600
E) $ 44

Question 53

In a survey, children were asked what flavor of ice cream they favored. 600 children, or 30 $\%$ of the respondents, said chocolate was their favorite. How many children responded in the survey?

A) 630
B) 600
C) 2000
D) 180
E) 1800

Question 54

Suppose that 22 $\%$ of the women and 26.4 $\%$ of the men in a country today have earned a bachelor's or graduate degree. How many women in the country have earned a bachelor's or graduate degree?

A) 220,000,000
B) 110,000,000
C) 264,000,000
D) 132,000,000
E) Insufficient information

Question 55

In a survey of 343 women and 420 men, 275 of the women and 300 of the men reported that they wore sunscreen often. To the nearest tenth of a percent, what percent of the women wore sunscreen often?

A) 82.2 $\%$
B) 80.2 $\%$
C) 81.2 $\%$
D) 80.5 $\%$
E) 78.2 $\%$

Question 56

At the end of the first school day, Mr. Davies, a first grade teacher, inspected his classroom crayons. 2 of the 200 crayons were broken. What percent of the crayons were not broken?

A) 99 $\%$
B) 99.9 $\%$
C) 1 $\%$
D) 0.1 $\%$
E) 198 $\%$

Question 57

During a quality control test, The Nail Place found that 10 nail guns were defective. This amount was 0.5 $\%$ of the nail guns tested.
a) How many nail guns were tested?
b) How many nail guns tested were not defective?

A) a) 2000; b) 1990
B) a) 20; b) 1990
C) a) 200; b) 1990
D) a) 2000; b) 2010
E) a) 20; b) 10

Question 58

Peggy's mother read on the medicine bottle that the medication would be effective for 8 hours. During Peggy's use of the drug, the medication was effective for only 70 $\%$ of the length of time claimed on the bottle. Find the length of time the medication was effective. Round your answer to the nearest tenth.

A) 5.6 hours
B) 46.0 hours
C) 4.6 hours
D) 6.6 hours
E) 0.6 hours

Question 59

In a recent clinical trial, 245 patients received Medication A while 180 patients received Medication B. 16 of the patients receiving Medication A reported dizziness after taking the medication, whereas only 12 of those on Medication B reported dizziness. Which medication had the higher percentage of patients reporting dizziness?

A) Medication A
B) Medication B

Question 60

According to USDA dietary guidelines for Americans, diets that receive fewer than 37 $\%$ of calories from carbohydrates are difficult to adhere to and are not recommended for weight loss. If you are on a 2000-calorie diet, what is the minimum number of calories you should get daily from carbohydrates?

A) 723 calories
B) 756 calories
C) 728 calories
D) 740 calories
E) 750 calories

Question 61

A group of consumers was asked to taste two cough syrups and rate the one with the best flavor. The results show that of 295 people, 160 favored Cough Syrup A. What percent of those surveyed favored Cough Syrup B?

A) 42 $\%$
B) 52 $\%$
C) 41 $\%$
D) 48 $\%$
E) 46 $\%$

Question 62

If a patient receives 515 milliliters of a 6 $\%$ dextrose solution in an IV, how many grams of dextrose does the patient receive when the infusion is complete?

A) 23 grams
B) 22 grams
C) 41 grams
D) 31 grams
E) 34 grams