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What is the result of the subtraction: 28.19 - 9 = ?
- A. 28.1
- B. 18.19
- C. 27.29
- D. 19.19
Correct Answer: D
Rationale: To find the result of 28.19 - 9, align the decimal points and subtract each place value accordingly. Subtracting 9 from 28.19 results in 19.19. In this calculation, when subtracting 9 from 19 in the tenths place, 1 remains in the tenths place. Subtracting 0 from 8 in the ones place gives 8. Therefore, the correct answer is 19.19. It's crucial to maintain the alignment of decimal points while performing arithmetic operations involving decimals to ensure accuracy.
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If a person reads two chapters a day, with each chapter having 6 pages, and there are 798 pages in total, how many days will it take them to finish reading?
- A. 133
- B. 399
- C. 66 1/2
- D. 75 1/2
Correct Answer: C
Rationale: To determine the number of days it will take to finish reading 798 pages, divide the total number of pages by the number of pages read in a day. Since the person reads 2 chapters per day, equivalent to 12 pages per day (2 chapters * 6 pages per chapter), it will take them 798 / 12 = 66.5 days, which is the same as 66 1/2 days. Therefore, the correct answer is 66 1/2, representing the number of days needed to complete reading all 798 pages if two chapters of 6 pages each are read daily.
If a person reads two chapters a day, each with 6 pages, and there are a total of 798 pages, how many days will it take to finish reading?
- A. 133 days
- B. 399 days
- C. 66 1/2 days
- D. 75 1/2 days
Correct Answer: C
Rationale: To determine the number of days required to finish reading the book, divide the total number of pages (798) by the number of pages read per day, which is 2 chapters x 6 pages = 12 pages per day. Therefore, 798 pages · 12 pages per day = 66.5 days. It will take approximately 66 1/2 days to complete reading the book at this pace.
How many pints are in 56 ounces?
- A. 4
- B. 3.5
- C. 3
- D. 5
Correct Answer: B
Rationale: To convert ounces to pints, you need to know that there are 16 ounces in a pint. To find out how many pints are in 56 ounces, you divide 56 by 16 (56 ounces · 16 ounces/pint), which equals 3.5 pints. Therefore, there are 3.5 pints in 56 ounces.
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.
Ratio and Proportion: 9 : X :: 5 : 300 (Enter numeric value only.)
- A. 450
- B. 540
- C. 600
- D. 480
Correct Answer: B
Rationale: To find the value of X in the proportion 9 : X :: 5 : 300, we can set up the equation (9/X) = (5/300) and cross-multiply. This gives us 9 * 300 = 5 * X. Simplifying further, we get X = (9 * 300) / 5 = 540. Therefore, the correct answer is 540, which is option B.