HESI A2
HESI A2 Math Practice Exam Questions
Question 1 of 5
A farmer wants to plant trees at the outside boundaries of his rectangular field with dimensions 650 meters 780 meters. Each tree requires 5 meters of free space all around it from the stem. How much free area will be left?
Correct Answer: A
Rationale: Failed to generate a rationale after 5 retries.
Question 2 of 5
How many ounces are in 3 pints?
Correct Answer: B
Rationale: To convert pints to ounces, we know that 1 pint is equal to 16 ounces. Therefore, 3 pints would be 3 x 16 = 48 ounces. This makes choice B the correct answer. Choice A (24 ounces) is incorrect as it represents only 1 pint, not 3. Choice C (32 ounces) and choice D (64 ounces) are also incorrect as they do not accurately reflect the conversion of pints to ounces.
Question 3 of 5
What percent of 36 is 9?
Correct Answer: D
Rationale: To find what percent of 36 is 9, we divide 9 by 36: 9/36 = 0.25. To convert this decimal to a percentage, we multiply by 100: 0.25 x 100 = 25%. So, the correct answer is D (10%). Choice A (25%), B (20%), and C (15%) are incorrect as they do not correctly represent the relationship between 9 and 36.
Question 4 of 5
An IV bag contains 500ml of saline solution and needs to be infused over 4 hours. What is the flow rate in drops per minute, assuming 20 drops per milliliter?
Correct Answer: C
Rationale: To calculate the flow rate in drops per minute, we first convert the infusion time to minutes (4 hours = 240 minutes). Then, we multiply the total volume (500 ml) by the number of drops per milliliter (20) to get the total drops. Dividing total drops by total time gives the flow rate. Therefore, 500 ml x 20 drops/ml = 10,000 drops. Flow rate = 10,000 drops / 240 minutes = 41.67 drops/min. Rounding up, the correct answer is C: 50 drops/min. Choice A is incorrect as it is half the correct value. Choices B and D are incorrect as they are double and quadruple the correct value, respectively.
Question 5 of 5
The order of operations (PEMDAS) dictates the sequence for evaluating mathematical expressions. If a = 2 and b = -3, what is the value of 3a^2 - 2ab + b^2?
Correct Answer: C
Rationale: To evaluate the expression 3a^2 - 2ab + b^2 with a = 2 and b = -3: 1. Substitute a = 2, b = -3: 3(2)^2 - 2(2)(-3) + (-3)^2 2. Simplify: 3(4) + 12 + 9 = 12 + 12 + 9 = 33 Therefore, the correct answer is C (33). Other choices are incorrect because they do not yield the correct result when substituting a = 2 and b = -3.
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