Mathematics, 01.12.2020 17:30 paulusl19
There are 20 students in a drama class. The mean age of 12 students is 18 years. The mean age of the remaining 8 students of the drama class is 23 years. What is the mean age of all the students in the drama class?
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There are 20 students in a drama class. The mean age of 12 students is 18 years. The mean age of the...
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