In a group of 10 students, 7 are 13 years old and 3 are
17 years old. what is the average (ar...
Mathematics, 19.08.2019 02:30 milhai0627a
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?
Answers: 2
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