ATI TEAS 7
TEAS Math Practice Test Questions
Question 1 of 5
Five of six numbers have a sum of 25. The average of all six numbers is 6. What is the sixth number?
Correct Answer: C
Rationale: To find the sum of all six numbers, we multiply the average (6) by the total numbers (6), which equals 36. Since the sum of five numbers is 25, the sixth number can be found by subtracting the sum of five numbers from the total sum: 36 - 25 = 11. Therefore, the sixth number is 11. Choice A, 8, is incorrect because adding 8 to the sum of five numbers (25) would result in a total greater than the correct sum of all six numbers (36). Choice B, 10, is incorrect because adding 10 to the sum of five numbers (25) would also result in a total greater than the correct sum of all six numbers (36). Choice D, 12, is incorrect because adding 12 to the sum of five numbers (25) would exceed the correct sum of all six numbers (36).
Question 2 of 5
If ð‘› = 8, then n is between which of the following ranges?
Correct Answer: B
Rationale: In this question, we are given that ð‘› = 8 and we are asked to determine the range in which n lies. Since ð‘› = 8, we know that n is related to ð‘› by the equation n = ð‘› + 1. Plugging in ð‘› = 8, we find that n = 8 + 1 = 9. Therefore, n is between 7 and 9, making option B the correct answer. Option A (5 and 7) is incorrect because n is greater than 7. Option C (9 and 11) is incorrect because n is not greater than 9. Option D (3 and 5) is incorrect because n is greater than 5. Educationally, this question tests the understanding of basic arithmetic operations and the concept of variables in mathematical equations. It requires students to apply the given information to solve for the unknown variable. By explaining the relationship between ð‘› and n, students can grasp the concept of substitution and solving equations. This question also reinforces the importance of careful calculation and attention to detail in mathematical problem-solving.
Question 3 of 5
A closet is filled with red, blue, and green shirts. If 1/4 of the shirts are green and 1/3 are red, what fraction of the shirts are blue?
Correct Answer: C
Rationale: Let the total number of shirts be x. Given that 1/4 of the shirts are green and 1/3 are red, we have Green = x/4 and Red = x/3. To find the fraction of blue shirts, we subtract the fractions of green and red shirts from 1: Blue fraction = 1 - (1/4 + 1/3) = 1 - (3/12 + 4/12) = 1 - 7/12 = 5/12. Therefore, the fraction of blue shirts is 5/12. Choices A, B, and D are incorrect because they do not accurately represent the fraction of blue shirts given the information provided.
Question 4 of 5
Shawna buys 5 gallons of paint. If she uses 2/5 of it on the first day, how much paint does she have left?
Correct Answer: A
Rationale: To find out how much paint Shawna uses on the first day, calculate 2/5 * 5 = 2 gallons. Subtracting the amount used from the total amount gives us 5 - 2 = 3 gallons remaining. Therefore, Shawna has 3 gallons of paint left after using 2 gallons on the first day. Choice A is correct. Choices B, C, and D are incorrect because she has more paint left than the options presented.
Question 5 of 5
How will 0.80 be written as a percent?
Correct Answer: D
Rationale: To convert a decimal to a percent, you multiply by 100. Therefore, 0.80 * 100 = 80%. The correct answer is D. Choice A (40%) is incorrect as 0.80 is not equivalent to 40%. Choice B (125%) is incorrect as it is greater than 100%. Choice C (90%) is incorrect as it does not reflect the correct conversion of 0.80 to a percent.