Step 1: Sum the ages First, add all the ages together. Sum of ages = 120+124+123+130+130+129+130=886months. Step 2: Count the number of girls There are 7 ages listed in the problem. Number of girls = 7. Step 3: Divide the sum by the number of girls Divide the total sum of the ages by the number of girls to find the average. Average age = Sum of ages/Number of girls=8867≈126.5714 Answer: The average age is approximately 126.57 months.
The ages of six girls are 120 months, 124 months, 123 months, 130 months, 130 months, 129 months, and 130 months. find the average age
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Question context
This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.