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Mathematics, 21.01.2020 17:31, lewismichelle11
Group a consists of x students and their total age is 221 and their average age is an integer. when group a is merged with group b with twice the number of students (the number of students between 30 and 40) average age of b is reduced by 1.what is the original average age of b?
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Group a consists of x students and their total age is 221 and their average age is an integer. when...
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