Which term of the AP: 21, 42, 63, 84,... is 210? (A) 9^th (B) 10^th (C) 11^th (D) 12^th
Which term of the AP: 21, 42, 63, 84,... is 210?
(A) 9th (B) 10th (C) 11th (D) 12th
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