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?

Question

11-06-2014
Mathematics

Answered

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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?

Sagot :

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