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

Question:

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

  1. $4: 1$

  2. $1: 3$

  3. $3: 1$

  4. $2: 1$


Correct Option: 3

JEE Main Previous Year 1 Question of JEE Main from Mathematics Sequences and Series chapter.
JEE Main Previous Year Jan. 11, 2019 (II)

Solution:

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