The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age of one of the boys is 22 years, what is the mean age of the other-boys?
-
A.
10.5 years -
B.
19.0 years -
C.
35.4 years -
D.
264.0 years -
E.
423.5 years
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