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If the 9^(th) term of A.P. is zero, then...

If the `9^(th)` term of A.P. is zero, then the ratio of `29^(th)` term to `19^(th)` term is

A

`1 : 2`

B

`1 : 3`

C

`2 : 1`

D

`3 : 1`

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The correct Answer is:
C
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