ATI TEAS 7
TEAS Practice Test Math Questions
Question 1 of 5
A circle has an area of 121π in². Which of the following is the circumference of the circle in terms of pi (π)?
Correct Answer: B
Rationale:
To find the circumference of the circle, we first need to determine the radius. Given that the area of the circle is 121π in², we use the formula for the area of a circle (A = πr²) to find the radius squared. So, r² = 121, which means the radius (r) is 11 in. The circumference of a circle is calculated using the formula 2πr. Substituting the radius value of 11 in, we get 2π(11) = 22π in.
Therefore, the correct answer is 22π in.
Choice A (11π in),
Choice C (44π in), and
Choice D (5.5π in) are incorrect because they do not correctly calculate the circumference based on the given area of the circle.
Question 2 of 5
What is the least common denominator for the fractions below? 1/2, 2/3, 4/5
Correct Answer: A
Rationale:
To find the least common denominator for fractions 1/2, 2/3, and 4/5, we need to identify the least common multiple of the denominators. The denominators are 2, 3, and 5. The least common multiple of 2, 3, and 5 is 30.
Therefore, 30 is the least common denominator for these fractions.
Choice B (25), C (7), and D (19) are incorrect because they are not the least common multiple of the denominators of the given fractions.
Question 3 of 5
How many milliliters are there in 3.2 liters?
Correct Answer: C
Rationale:
To convert liters to milliliters, you need to know that 1 liter is equal to 1000 milliliters.
Therefore, 3.2 liters is equivalent to 3.2 x 1000 = 3200 milliliters.
Choice A (0.32) is incorrect as it incorrectly moves the decimal point.
Choice B (32) is incorrect as it doesn't consider the conversion factor between liters and milliliters.
Choice D (320) is incorrect as it is a partial conversion error, missing a zero at the end.
Question 4 of 5
A patient requires a 30% increase in the dosage of their medication. Their current dosage is 270 mg. What will their dosage be after the increase?
Correct Answer: D
Rationale:
To calculate a 30% increase from the current dosage of 270 mg, first find 30% of 270, which is 81 mg. Add this 81 mg increase to the original dosage of 270 mg to get the new dosage, which is 351 mg (270 mg + 81 mg = 351 mg).
Therefore, the correct answer is 351 mg.
Choice A (81 mg) is incorrect because this value represents only the calculated 30% increase, not the total dosage after the increase.
Choice B (270 mg) is the original dosage and does not account for the 30% increase.
Choice C (300 mg) is close to the correct answer but does not consider the precise 30% increase calculation, leading to an incorrect total dosage.
Question 5 of 5
If x represents the width of a rectangle and the length is six less than two times the width, which of the following expressions represents the length of the rectangle in terms of x?
Correct Answer: A
Rationale:
To find the expression representing the length of the rectangle in terms of x, we need to consider that the length is six less than two times the width. If we denote the width as x, the length can be expressed as 2x - 6.
Therefore, the correct expression is 2x-6 (choice
A).
Choice B, 6-2x, represents the width subtracted from 6, not the length.
Choice C, 6x-2, is not derived from the given information about the relationship between the width and length.
Choice D, 3x-4, is not consistent with the relationship provided in the question.