IMSA Data Interpretation and Word Problems 1 — Questions and Answers
Question 1: A store's sales were $12,000 in January and $15,000 in February. What was the percent increase?
- 25% (Correct answer)
- 20%
- 15%
- 3%
Correct answer: 25%
Percent increase = (15000 − 12000)/12000 × 100 = 3000/12000 × 100 = 25%.
Question 2: The average of 5 test scores is 82. What is the sum of all 5 scores?
- 410 (Correct answer)
- 82
- 164
- 400
Correct answer: 410
Sum = average × number of values = 82 × 5 = 410.
Question 3: A bar chart shows sales of 50, 70, 60, and 80 units over 4 months. What is the mean?
- 65 (Correct answer)
- 70
- 60
- 55
Correct answer: 65
Mean = (50 + 70 + 60 + 80)/4 = 260/4 = 65.
Question 4: A car travels 240 miles in 4 hours. What is its average speed?
- 60 mph (Correct answer)
- 64 mph
- 50 mph
- 80 mph
Correct answer: 60 mph
Speed = distance/time = 240/4 = 60 mph.
Question 5: A dataset is: 3, 7, 7, 9, 12. What is the median?
- 7 (Correct answer)
- 9
- 7.6
- 3
Correct answer: 7
The dataset is already ordered; the middle value (3rd of 5) is 7.
Question 6: If 8 workers can complete a job in 6 days, how many days would 12 workers take?
- 4 (Correct answer)
- 3
- 9
- 2
Correct answer: 4
Total work = 8 × 6 = 48 worker-days; 48 ÷ 12 = 4 days.
IMSA Data Interpretation and Word Problems 1
A store's sales were $12,000 in January and $15,000 in February.
What was the percent increase?