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A group of 40 employees of Cadre A has a mean age of 31. A different group of 60 employees of cadre B has a mean age of 28. What is the mean age of two employees of the two groups together?

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The UGC NET General Paper on Teaching & Research Aptitude is an exam designed to test the teaching and research skills of Indian teachers to determine their eligibility for college lectureship. 
 


A group of 40 employees of Cadre A has a mean age of 31. A different group of 60 employees of cadre B has a mean age of 28. What is the mean age of two employees of the two groups together?






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