Question

The sum of first 2n terms of an A.P 2,5,8,11.
is equal to the sum of the 1st n terms of
57, 59, 61, 63. Find n
​

Answer 1

Answer:

Now we are given that the sum of the first 2n terms of the AP 2,5,8 .....is equal to the sum of the first n terms of the AP 57,59,61.... So, Hence the value of n is 11