If 19th term of a non-zero A.P. is zero, then its (49th term) : (29th term) is:

Mathematics · JEE Main · NTA Exams — Progression and Series

1. 2 : 1
2. 4 : 1
3. 1 : 3
4. 3 : 1

Answer

(D) 3 : 1

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