108. The mean of 12, 22, 32, 42, ..., 192, 202
is
(A) 143.5
(B) 134.5
(C) 154.4
(D) None of the above
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Step-by-step explanation:
mean=12+22+32+ 42+ 52+ 62+ 72+ 82+ 92 +102 +112+ 122 +132+ 142+ 152+ 162+ 172 +182 +192 +202
_______________________________
20
=107
so ans is D) none of the above
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