HESI A2 Math Practice Test 2024

Correct Answer: A

Rationale: To find the correct answer, we need to set up a proportion: 4 cups of sugar for 120 cookies is equivalent to x cups of sugar for 90 cookies. Cross multiply to get 4*90 = 120*x, which simplifies to 360 = 120x. Divide by 120 to get x = 3 cups. Therefore, the correct answer is A: 3 cups of sugar. The other choices are incorrect because they do not align with the proportional relationship between the amount of sugar and the number of cookies in the recipe. Choice B, 2 cups, is too few as it would be for fewer than 90 cookies. Choice C, 1.5 cups, is even less than 2 cups and doesn't fit the ratio. Choice D, 4 cups, is the amount needed for 120 cookies, not 90.

Correct Answer: D

Rationale: To find 25% of 400, you multiply 400 by 0.25 (25% as a decimal). So, 400 * 0.25 = 100. Therefore, the correct answer is D. Choice A (800) is incorrect as it is 200% of 400. Choice B (10,000) is incorrect as it is 2500% of 400. Choice C (200) is incorrect as it is 50% of 400.

Correct Answer: C

Rationale: The correct answer is C: 9:00 PM. To convert 2100 to standard time, subtract 12 hours from 2100 since military time is based on a 24-hour clock. 2100 - 1200 = 900, which translates to 9:00 PM. Choice A (12:00 PM) is incorrect as it would be noon, not evening. Choice B (2:00 AM) is incorrect as it represents the early morning. Choice D (2:00 PM) is incorrect as it is in the afternoon, not evening.

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: C

Rationale: To subtract 12 - 7 & 4\5, first convert 12 to a mixed number: 12 = 11 & 5\5. Then, subtract the whole numbers: 11 - 7 = 4. Next, subtract the fractions: 5\5 - 4\5 = 1\5. Therefore, the correct answer is 4 & 1\5 (Choice C). Choices A, B, and D are incorrect as they do not accurately represent the result of the subtraction calculation.