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CBSE Notes 2011-2012

The sum of the first 2n terms of the AP 2,5,8,... is equal to sum of the first n terms of the AP 57,...

Multiple choice question

The sum of the first 2n terms of the AP
2,5,8,... is equal to sum of the first n terms of the AP 57,
59, 61,... then n equals

unknown

10

unknown

11

unknown

12

unknown

13