HESI A2 Practice Test Math

Correct Answer: A

Rationale: The correct answer is A: 2 liters. 1 quart is equivalent to 0.946 liters. Therefore, 2 quarts equal 1.892 liters, which can be rounded to 2 liters for practical purposes. This conversion is necessary as the measuring device is marked in liters, and the directions in quarts need to be converted accurately. The other choices are incorrect because B (1 liter) is less than the required amount, C (3 liters) is too much, and D (5 liters) is excessive based on the conversion from quarts to liters.

Correct Answer: B

Rationale: To find 20% of 150, you multiply 150 by 20% (or 0.20). So, 150 * 0.20 = 30. Therefore, the correct answer is B (30). Choice A (25) is incorrect because 20% of 150 is not 25. Choice C (35) is incorrect because it is more than 20% of 150. Choice D (20) is incorrect because 20% of 150 is not the same as the original number 150.

Correct Answer: A

Rationale: To add 5 2/9 and 1 2/9, first add the whole numbers: 5 + 1 = 6. Then add the fractions: 2/9 + 2/9 = 4/9. Combine the whole number and the fraction to get 6 4/9, which is the correct answer (A). Other choices are incorrect because they either do not consider adding the fractions (D), or incorrectly add only the whole numbers (C), or miscalculate the fractions (B).

Correct Answer: A

Rationale: The correct answer is A: 33%. To find the percentage of male students, subtract the number of female students (32) from the total number of students (48) to get the number of male students (16). Then, divide the number of male students (16) by the total number of students (48) and multiply by 100 to get the percentage of male students, which is 33%. Choice B (66%) is incorrect because it represents the percentage of female students, not male students. Choice C (25%) and Choice D (45%) are also incorrect as they do not accurately reflect the percentage of male students in the class.

Correct Answer: A

Rationale: To convert a decimal to a percent, you multiply by 100. In this case, 0.98 * 100 = 98%. Therefore, the correct answer is A. Choice B is incorrect as it represents 9%, not 0.98%. Choice C is incorrect as it is the decimal form itself, not the percentage. Choice D is incorrect as it represents 99%, not 0.98%.