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     EduGorilla 
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    The average age of a group of 10 students is 12 years. If a teacher joins the group, the average age increases by 1 year. If another teacher of the same age also joins the group, what will be the average age of the whole group?

    Options :-

    1. 11 years
    2. 12.93 years
    3. 13 years
    4. 13.83 years
    5. 14 years
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