For the $A.P.$ $3, 8, 13, 18, \ldots$,$T_{n} = \ldots$

Which term of the $A.P.$ $71, 68, 65, \ldots$ is its first negative term?

Subba Rao started work in $1995$ at an annual salary of ₹ $5000$ and received an increment of ₹ $200$ each year. In which year did his income reach ₹ $7000$?

In an $AP$ if $a = -7.2, d = 3.6, a_{n} = 7.2,$ then $n$ is

For an $A.P.$,the $6^{th}$ term is $19$ and the $17^{th}$ term is $41$. Find the $40^{th}$ term of the $A.P.$

The $n^{th}$ term of an $A.P.$ is given by $T_n = 5n - 2$. Then,the $12^{th}$ term of the $A.P.$ is: