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[" Q1: Given an A.P.whose terms are all ...

[" Q1: Given an A.P.whose terms are all positive integers.The sum of its first nine terms is greater than "200" and "],[" less than "220." If the second term in it is "12," then its "4" th term is: "],[" A "20],[" B "16],[" C "8],[" D "24]

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