A child recorded the following number of butterflies in the school garden on three consecutive days: 12, 18, and 15. Find the total number of butterflies seen and the average per day.
Answer
Total: 45 butterflies; Average: 15 butterflies per day.
The correct answer is Total: 45 butterflies; Average: 15 butterflies per day. — Divide the total by the number of days (3) to find the average: 45 ÷ 3 = 15 butterflies per day.
Step-by-step solution
- Add the daily counts: 12 + 18 + 15 = 45 butterflies in total.
- Divide the total by the number of days (3) to find the average: 45 ÷ 3 = 15 butterflies per day.
Common mistake: Adding incorrectly or forgetting to divide by 3
Concept tested: Simple addition and averaging
Published · How this solution was prepared and checked
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