HESI A2
HESI A2 Math Practice Questions
Question 1 of 5
How many ounces are in 3 5/8 quarts?
Correct Answer: A
Rationale: To convert quarts to ounces, we know that 1 quart equals 32 ounces. To find the number of ounces in 3 5/8 quarts, we multiply 3 by 32 (96 oz) and add 5/8 of 32 (16 oz). Therefore, 3 5/8 quarts equals 96 + 16 = 112 ounces. The correct answer is 184 oz, which is obtained by multiplying 3 5/8 quarts by 32 (quarts to ounces conversion factor). Other choices are incorrect because they do not correctly apply the conversion factor from quarts to ounces or use incorrect calculations.
Question 2 of 5
If there are 128 ounces in 1 gallon, how many ounces are in 2.5 gallons?
Correct Answer: B
Rationale: To find out how many ounces are in 2.5 gallons, we multiply 128 (ounces in 1 gallon) by 2.5. 128 x 2.5 = 320 ounces. Therefore, the correct answer is B (320 ounces). Choice A (256 ounces) is incorrect as it doesn't account for the extra 0.5 gallons. Choice C (400 ounces) is incorrect as it overestimates the total ounces. Choice D (250 ounces) is incorrect as it miscalculates the total ounces by not considering the full 2.5 gallons.
Question 3 of 5
What is the probability of rolling a 3 on a six-sided die?
Correct Answer: A
Rationale: The correct answer is A: 1/6. There is only one face on a six-sided die that shows a 3, so the probability of rolling a 3 is 1 out of 6 possible outcomes (1, 2, 3, 4, 5, 6). To calculate the probability, divide the favorable outcomes (1) by the total possible outcomes (6), which gives 1/6. Summary: B: 1/4 - Incorrect, as there is only one 3 on a six-sided die, not 1 out of 4. C: 1/3 - Incorrect, as the probability of rolling a 3 is 1 out of 6, not 1 out of 3. D: 1/2 - Incorrect, as only one face represents a 3, not half of the faces on a six-sided die.
Question 4 of 5
A diabetic patient's blood sugar is 180mg/dL. Their usual insulin dose is 1 unit per 40mg/dL above 100mg/dL. How much insulin should be administered?
Correct Answer: B
Rationale: The correct answer is B: 3 units. To determine the insulin dose, we first calculate the excess blood sugar above 100mg/dL, which is 80mg/dL (180-100). Then, we use the ratio of 1 unit per 40mg/dL excess, resulting in 2 units for the first 80mg/dL. Since the blood sugar is 180mg/dL, an additional unit is needed for the remaining 40mg/dL above 100mg/dL, totaling 3 units. Choice A: 2 units - This is incorrect as it only accounts for the first 80mg/dL excess and does not consider the additional 40mg/dL above 100mg/dL. Choice C: 4 units - This is incorrect as it overestimates the insulin dose by not using the correct ratio of 1 unit per 40mg/dL excess. Choice D: 5 units - This is incorrect as it
Question 5 of 5
If 3 nurses can care for 15 patients, how many nurses are needed for 25 patients?
Correct Answer: B
Rationale: To determine the number of nurses needed for 25 patients, we can set up a proportion based on the given information. If 3 nurses can care for 15 patients, then the ratio of nurses to patients is 3:15 or 1:5. To find out how many nurses are needed for 25 patients, we can set up the proportion 1/5 = x/25 and solve for x. Cross multiplying gives us 5x = 25, so x = 25/5 = 5. Therefore, 5 nurses are needed for 25 patients. Choice A (4 nurses) is incorrect because it does not account for the increased number of patients. Choice C (6 nurses) and Choice D (7 nurses) are also incorrect as they overestimate the number of nurses needed based on the given ratio of nurses to patients.
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