Question

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

• A. $3:1$
• B. $4:1$
• C. $2:1$
• D. $1:3$

Answer 1

Answer: (A)

$3:1$

$a+18d=0$ ........................(1)
$\frac{a+48d}{a+28d}=\frac{-18d+48d}{-18d+28d}=\frac{3}{1}$