HESI A2 Math Practice Test 2022 - Nurselytic

Correct Answer: B

Rationale:
To find the result of dividing 3.44 by 0.6, you perform the division operation: 3.44 · 0.6 = 5.73. When rounded off to the nearest whole number, 5.73 becomes 6.
Therefore, the correct answer is 6.
Choice A is incorrect as the result is not 0.
Choice C is incorrect as it is not the closest whole number to 5.73.
Choice D is incorrect as it does not reflect the accurate division result.

Correct Answer: C

Rationale:
To add mixed numbers, first add the whole numbers together, then add the fractions. 6 + 8 = 14. For the fractions: 3/4 + 1/6 = (18 + 4) / 24 = 22/24 = 11/12.
Therefore, 6 & 3/4 + 8 & 1/6 equals 14 & 11/12.
Choice A is incorrect as it does not represent the correct sum.
Choice B is incorrect because it does not match the correct result.
Choice D is incorrect as it simplifies to 12 & 1/6, not 12 & 3/24.

Correct Answer: C

Rationale:
To convert grams to milligrams, you need to multiply by 1,000 since there are 1,000 milligrams in a gram.
Therefore, 7 grams is equal to 7,000 milligrams.
Choice A (700 mg) is incorrect because it represents grams to milligrams incorrectly.
Choice B (0.7 mg) is incorrect as it converts grams to milligrams erroneously by decimal placement.
Choice D (0.07) is incorrect as it converts grams to milligrams inaccurately by misplacing the decimal point.

Correct Answer: A

Rationale:
To add fractions, find a common denominator, which in this case is 40. Convert each fraction to have the common denominator: 7/8 = 35/40, 9/10 = 36/40, and 6/5 = 48/40. Add these fractions to get 119/40. Simplify this improper fraction to a mixed number, which is 3 & 39/40.
Choice B and C are incorrect as they do not represent the sum of the fractions.
Choice D is incorrect; the whole number part should be 3, not 2.

Correct Answer: B

Rationale:
To solve the proportion 0.1:10=x:400, first, simplify the left side to 1:100.
Then, set up the proportion as 1:100=x:400. Cross multiply to get x = 4.
Therefore, the correct answer is B.
Choice A (5) is incorrect because it does not match the calculated value of x.
Choice C (50) is incorrect as it is not the result of solving the proportion provided.
Choice D (25) is incorrect as it does not align with the correct calculation of x.