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If 19^(th) term of a non-zero A.P. is ze...

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

A

`1:3`

B

`3:1`

C

`4:1`

D

`2:1`

Text Solution

Verified by Experts

The correct Answer is:
B
`because a _(19) =0 therefore " "a + 18d=0`
To find `(a+48d)/(a + 28d) = (-18d + 48d)/(-18d + 28d) =3/1`
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