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What is the result of adding 6, 12.55, and 5.022 together?
- A. 18.55
- B. 23.572
- C. 30.025
- D. 16.575
Correct Answer: B
Rationale: To find the sum of 6, 12.55, and 5.022, you need to add them together. First, add 6 + 12.55 to get 18.55. Then, add 18.55 + 5.022 to get the final result. 18.55 + 5.022 equals 23.572. Therefore, the correct answer is 23.572, as it represents the sum of all three numbers.
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Rounded to the nearest whole number, what is 17 out of 68 as a percentage?
- A. 17%
- B. 25%
- C. 32%
- D. 68%
Correct Answer: B
Rationale: To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100. In this case, (17 · 68) — 100 = 25%. Therefore, when rounded to the nearest whole number, 17 out of 68 as a percentage is 25%.
What time is 5:00 am in military time (24-hour clock)? (Enter numeric value only.)
- A. 5000
- B. 500
- C. 1500
- D. 1700
Correct Answer: B
Rationale: The correct answer is B: 500. In military time, 5:00 am is represented as 0500. This is because the 24-hour clock system uses four digits, with the first two indicating the hour and the last two indicating the minutes. Choice A (5000) is incorrect as it has an extra digit. Choice C (1500) represents 3:00 pm, while choice D (1700) represents 5:00 pm. Therefore, the correct representation of 5:00 am in military time is 0500.
Calculate the product: (99)(0.56) =
- A. 99.3
- B. 99.56
- C. 55.44
- D. 199.54
Correct Answer: C
Rationale: To multiply decimals, multiply the numbers as if they were whole numbers and then place the decimal point in the product. In this case, (99)(0.56) = 55.44. To find the product, multiply 99 by 0.56, which equals 55.44. Therefore, the correct answer is 55.44, as shown in choice C. Hence, choice C, 55.44, is the correct answer.
Ratio and Proportion: 3: X = 5: 800. What is X? (Enter numeric value only.)
- A. 43.64
- B. 50
- C. 48.5
- D. 60
Correct Answer: A
Rationale: To find the value of X in the given ratio, set up the proportion: (3/X) = (5/800). Cross-multiply to solve for X: 3 — 800 = 5X. This simplifies to 2400 = 5X. Dividing both sides by 5 gives X = 2400/5 = 480. Therefore, the correct answer is A) 43.64.
What is the sum of 6, 12.55, and 5.022?
- A. 18.572
- B. 23.572
- C. 30.572
- D. 16.572
Correct Answer: B
Rationale: To find the sum of 6, 12.55, and 5.022, you add the numbers together: 6 + 12.55 + 5.022 = 23.572. The correct answer is B, 23.572, as this is the total sum of the three numbers provided. Therefore, the sum of 6, 12.55, and 5.022 is 23.572.