If the mean of the numbers \( a+27, a+19, a+38, a \) \( +47, \mathrm{a}+54 \) is 82 Then the mea... VIDEO
If the mean of the numbers \( a+27, a+19, a+38, a \) \( +47, \mathrm{a}+54 \) is 82 Then the mean of \( \mathrm{a}+9 \), \( \mathrm{a}+21 \), \( \mathrm{a}+27 \) is:
a. 80
b. 62
c. 64
d. 54
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