Math HESI A2 Practice Test

Correct Answer: A

Rationale: To find the time to wash 100 cars, we can set up a proportion: 30 cars / 15 minutes = 100 cars / x minutes. Cross multiply to get 30x = 1500, then divide by 30 to find x = 50 minutes. Therefore, the correct answer is A. Choice B, 55 minutes, is incorrect as it does not align with the calculation. Choice C, 30 minutes, is incorrect as it is the time to wash 60 cars, not 100. Choice D, 45 minutes, is incorrect as it does not match the calculated time of 50 minutes for washing 100 cars.

Correct Answer: D

Rationale: To convert ounces to pounds, divide the number of ounces by 16 (since there are 16 ounces in a pound). So, 128 ounces ÷ 16 = 8 pounds. Therefore, the correct answer is D: 8 pounds. A: 16 pounds - Incorrect, as 128 ounces is equivalent to 8 pounds. B: 10 pounds - Incorrect, as it does not result from the conversion of 128 ounces. C: 12 pounds - Incorrect, as it is not the accurate conversion from ounces to pounds.

Correct Answer: C

Rationale: To convert quarts to ounces, you need to know that 1 quart equals 32 ounces. Therefore, 1.5 quarts would be 1.5 x 32 = 48 ounces. So, the correct answer is C (48 ounces). Choice A is incorrect as it incorrectly converts quarts to ounces. Choice B is half of the correct conversion. Choice D is double the correct conversion.

Correct Answer: B

Rationale: To find total calories consumed in 3 meals, multiply 500 calories/meal by 3 meals: 500 x 3 = 1500 calories. This is why choice B is correct. Choices A, C, and D are incorrect because they do not accurately calculate the total calories consumed in 3 meals. Choice A is half the correct answer, choice C is double, and choice D is the amount of calories in one meal, not for 3 meals.

Correct Answer: A

Rationale: To calculate 54% of $789.56, you multiply 789.56 by 0.54. This gives you $426.36, which is option A. The correct answer is A because multiplying the percentage (54%) by the total amount ($789.56) gives the accurate result. Option B, $426.37, is incorrect as it is a slightly higher amount due to rounding off. Option C, $363.20, and option D, $526.38, are incorrect because they are not the result of calculating 54% of $789.56 accurately.