HESI A2 Math Practice Test 2024

Correct Answer: A

Rationale: To find the number of days it will take the man to read 798 pages, first calculate the total number of chapters: 798 pages / (6 pages/chapter) = 133 chapters. Since he reads 2 chapters a day, divide the total chapters by 2 to get 133 chapters / 2 chapters/day = 66.5 days. Therefore, the correct answer is A: 66 & 1/2. Incorrect Choices: B: 399 - Incorrect as it does not reflect the correct calculation. C: 75 & 1/2 - Incorrect, the calculation is incorrect. D: 133 - Incorrect, this represents the total number of chapters, not the number of days.

Correct Answer: A

Rationale: To calculate the percentage of patients satisfied, divide the number of satisfied patients (120) by the total number of patients surveyed (150) and multiply by 100. So, (120/150) x 100 = 80%. Therefore, the correct answer is A (80%). Choice B (75%) is too low, Choice C (85%) is too high, and Choice D (90%) is also too high based on the given data. Thus, the correct percentage of patients satisfied is 80%.

Correct Answer: C

Rationale: The correct answer is C because the range of 5 degrees Celsius indicates the difference between the highest and lowest temperatures in the set is 5 degrees. This is the definition of range in statistics. A is incorrect because the range does not provide information about the average temperature. B is incorrect because the range only tells us the spread between the highest and lowest temperatures, not that all temperatures are within 5 degrees of each other. D is incorrect because the range does not indicate how many temperatures are in the set, just the difference between the highest and lowest temperatures.

Correct Answer: A

Rationale: To determine the patient with the highest systolic pressure in the table, you need to find the largest number in the 'systolic pressure' column. This is because the highest systolic pressure reading directly corresponds to the individual with the highest blood pressure value among all age groups. Comparing means (Choice B) would not identify the specific individual with the highest pressure, as it calculates an average. Adding all values and dividing by the total number (Choice C) would give the average pressure, not the highest. Subtracting the lowest from the highest (Choice D) would only give the range, not the specific highest value.

Correct Answer: A

Rationale: To add fractions, ensure the denominators are the same. Here, both fractions already have a common denominator of 21. Add the numerators: 7 + 10 = 17. So, the result is 17/21 (choice A). Other choices are incorrect because: B: 15/21 - Incorrect, the sum of the numerators is 17, not 15. C: 9/21 - Incorrect, the sum of the numerators is 17, not 9. D: 10/21 - Incorrect, this is just one of the fractions being added, not the result of the addition.