Model solved papers (1-7)- economics question: 298/700 if the sum of the first 2n terms of the ap series 2,5,8,. is equal to the sum of the first n terms of the

Model Solved Papers (1-7)- Economics Question: 298/700 If the sum of the first 2n terms of the AP series 2,5,8,. is equal to the sum of the first n terms of the AP series 57,59,61,.., then n equals 10 12 11 13 View Solution According to the given condition SS 12x2-(2n-1)x31-(2xT+(n-1)x2] (4+6n-3) 114-2n-2) 6n + 1E 57 + n-1 5n 55 n 11 AT ON nDD