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6 March, 13:14

In a group of 10 students, 7 are 13 years old and 3 are

17 years old. What is the average (arithmetic mean) age of these 10

students?

+3
Answers (2)
  1. 6 March, 14:46
    0
    7.1, or 7 if you have to round it
  2. 6 March, 15:50
    0
    The average is 7.1.
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