IAAT - Iowa Algebra Aptitude Interpreting Mathematical Information Questions and Answers

Question 1

The graph below shows the number of books read by students in a book club over four months. Which of the following statements is best supported by the information in the graph?

[A bar graph shows 'Books Read by Book Club'. The x-axis is labeled 'Month' with bars for January, February, March, and April. The y-axis is labeled 'Number of Books' from 0 to 50 in increments of 10. January's bar reaches 25, February's reaches 35, March's reaches 30, and April's reaches 45.]

Accepted Answer

The greatest increase in the number of books read occurred between March and April.

Answer

The number of books read increased each month.

Answer

The book club read more books in the first two months than in the last two months.

Answer

The average number of books read per month was 30.

Question 2

A new mathematical operation is defined as a © b = 2a + b^2. What is the value of 4 © 5?

Accepted Answer

33

Answer

18

Answer

28

Answer

39

Question 3

A recipe for a fruit smoothie requires 3 ounces of yogurt for every 5 ounces of mixed berries. Based on this relationship, which of the following tables correctly shows the amount of yogurt and berries needed for different quantities of the smoothie?

[Table A shows Yogurt(oz): 6, 9, 12 and Berries(oz): 10, 15, 20. Table B shows Yogurt(oz): 6, 8, 10 and Berries(oz): 10, 13, 16. Table C shows Yogurt(oz): 5, 10, 15 and Berries(oz): 3, 6, 9. Table D shows Yogurt(oz): 6, 9, 12 and Berries(oz): 8, 11, 14.]

Accepted Answer

Table A

Answer

Table B

Answer

Table D

Answer

Table C

Question 4

The total cost (C) of a pizza is determined by a base price of $12 plus $1.50 for each topping (t). Which equation correctly represents this relationship?

Accepted Answer

C = 12 + 1.50t

Answer

C = 12t + 1.50

Answer

C = 1.50(12 + t)

Answer

C = 12 - 1.50t

Question 5

A middle school is tracking the number of students who participate in after-school sports. They find that the number of participants has increased by an average of 15 students per year since 2020, when there were 120 participants. If this trend continues, how many students will be participating in sports in 2026?

Accepted Answer

210

Answer

195

Answer

225

Answer

180

Question 6

The formula for converting temperature from Celsius (C) to Fahrenheit (F) is F = (9/5)C + 32. A scientist records a temperature of 25°C. What is the equivalent temperature in Fahrenheit?

Accepted Answer

77°F

Answer

45°F

Answer

57°F

Answer

102°F