Question

10. In an A.P., the first term is 25, nth term is- 17 and the sum of n terms is 132. Find n and the common difference.
11. If the gth term of an A.P. is 37 and the 15th term is 15 more than the 12th term, find the A.P. Also, find the sum of first 20 terms of this A.P.


plzz give the correct answer ​

Answer 1

Answer:

Step-by-step explanation:

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Edit 1: oh, I forgot one question, give me a moment and I will try to solve it

Edit 2: check the new attachment

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