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Round to the nearest percentage point: Gerald made 13 out of the 22 shots he took in the basketball game. What was his shooting percentage?
- A. 13%
- B. 22%
- C. 59%
- D. 67%
Correct Answer: C
Rationale: To calculate Gerald's shooting percentage, divide the number of shots made (13) by the total shots taken (22) to get the fraction of shots made. Then, multiply this fraction by 100 to convert it to a percentage. The calculation is (13/22) * 100 = 0.59 * 100 = 59%. Therefore, Gerald's shooting percentage is 59%, which corresponds to choice C.
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If a label states that 1 mil contains 500 mg, how many mils are there if there are 1.5 grams?
- A. 2
- B. 5
- C. 9
- D. 3
Correct Answer: D
Rationale: To convert grams to mils using the given conversion rate of 1 mil = 500 mg, you need to first convert grams to milligrams. Since 1 gram = 1000 milligrams, 1.5 grams would be 1500 milligrams. To find out how many mils this corresponds to, you divide the total milligrams by the milligrams per mil: 1500 mg · 500 mg/mil = 3 mils. Therefore, the correct answer is 3.
A library contains 67,982 books. The children's section represents 1/3 of the total books. Of the remaining books, 75% are fiction. How many books are in the non-fiction section?
- A. 11,331
- B. 33,990
- C. 50,986
- D. 45,321
Correct Answer: A
Rationale: To find the number of books in the non-fiction section, start by calculating the number of books in the children's section: 67,982 * 1/3 = 22,661 books. Subtract the children's books from the total to determine the remaining books: 67,982 - 22,661 = 45,321 books. As 75% of the remaining books are fiction, calculate 75% of 45,321 = 33,990 (fiction books). To find the number of non-fiction books, subtract the fiction books from the remaining books: 45,321 - 33,990 = 11,331. Therefore, there are 11,331 non-fiction books in the library.
Express 0.025 as a ratio.
- A. 1:40
- B. 4:1
- C. 400:1
- D. 26:40:00
Correct Answer: A
Rationale: To convert 0.025 to a ratio, you first convert the decimal to a fraction by writing it as 25/1000, which simplifies to 1/40. Therefore, the correct ratio for 0.025 is 1:40. When expressing decimals as ratios, it's important to remember to simplify the fraction to its simplest form. In this case, 1:40 is the simplest form of the ratio for 0.025, making it the correct answer choice.
Convert the percent to a decimal: 17.6% =
- A. 17.6
- B. 1.76
- C. 0.176
- D. 0.0176
Correct Answer: C
Rationale: To convert a percentage to a decimal, divide the percentage value by 100. In this case, 17.6% divided by 100 is 0.176. Therefore, the correct answer is 0.176, choice C. Remember, moving the decimal point two places to the left when converting a percentage to a decimal is a common method to follow. In this case, 17.6% as a decimal becomes 0.176, where 17.6% is equal to 17.6/100 = 0.176.
How many fluid ounces are in 2 1/2 gallons?
- A. 300 oz
- B. 3,200 oz
- C. 320 oz
- D. 51.2 oz
Correct Answer: C
Rationale: To convert gallons to fluid ounces, we know that 1 gallon is equal to 128 fluid ounces. Therefore, to find out how many fluid ounces are in 2 1/2 gallons, we multiply 2.5 (2 1/2) by 128.
2.5 * 128 = 320
So, there are 320 fluid ounces in 2 1/2 gallons.
Rationale:
A: 300 oz is incorrect because it is less than the correct answer of 320 oz.
B: 3,200 oz is incorrect as it is too large for the amount of 2 1/2 gallons.
C: 320 oz is correct as calculated.
D: 51.2 oz is incorrect as it does not accurately represent the conversion of 2 1/2 gallons to fluid ounces.