ATB Data Interpretation and Applied Math 1 — Questions and Answers
Question 1: A store sold 120 items in January, 150 in February, and 90 in March. What was the average number of items sold per month?
- 90
- 110
- 120 (Correct answer)
- 130
Correct answer: 120
The average is calculated by adding all values (120+150+90=360) and dividing by the number of months (360÷3=120).
Question 2: A pie chart shows that 25% of a $2,000 budget is spent on food. How much money is spent on food?
- $400
- $450
- $500 (Correct answer)
- $350
Correct answer: $500
25% of $2,000 equals $500 (0.25 × 2,000 = 500).
Question 3: A bar graph shows monthly rainfall in inches: January=3, February=2, March=5, April=4. What is the total rainfall for all four months?
- 12 inches
- 14 inches (Correct answer)
- 16 inches
- 10 inches
Correct answer: 14 inches
Adding all monthly values: 3+2+5+4=14 inches total.
Question 4: A table shows test scores for 5 students: 72, 85, 91, 68, 84. What is the median score?
- 72
- 84 (Correct answer)
- 85
- 91
Correct answer: 84
When sorted in order (68, 72, 84, 85, 91), the middle value is 84, which is the median.
Question 5: A company's profit was $10,000 in 2020. It increased by 20% in 2021, then decreased by 10% in 2022. What was the profit in 2022?
- $10,800 (Correct answer)
- $11,000
- $10,000
- $12,000
Correct answer: $10,800
$10,000 × 1.20 = $12,000 in 2021; then $12,000 × 0.90 = $10,800 in 2022.
Question 6: An employee worked the following hours: Monday=8, Tuesday=7, Wednesday=9, Thursday=8, Friday=6. If the hourly wage is $15, how much did the employee earn that week?
- $540
- $570 (Correct answer)
- $600
- $525
Correct answer: $570
Total hours = 8+7+9+8+6 = 38 hours; 38 × $15 = $570.
Question 7: A chart shows 200 survey respondents: 30% prefer Brand A, 45% prefer Brand B, and 25% prefer Brand C. How many people prefer Brand B?
- 80
- 90 (Correct answer)
- 100
- 45
Correct answer: 90
45% of 200 respondents = 0.45 × 200 = 90 people prefer Brand B.
ATB Data Interpretation and Applied Math 1
A store sold 120 items in January, 150 in February, and 90 in March.
What was the average number of items sold per month?