The $n^{th}$ term of an $A.P.$ is given by $T_n = 6n - 5$. Then,the $10^{th}$ term of the $A.P.$ is:

If the $n$th terms of the two $APs$: $9, 7, 5, \ldots$ and $24, 21, 18, \ldots$ are the same,find the value of $n$. Also,find that term.

Which term of the $A.P.$ $34, 27, 20, 13, \ldots$ is $-519$ (in $^{th}$)?

Which of the following is an $A.P.$?

The production of a $TV$ factory increases equally every year. Its production in the $3^{rd}$ year was $600 \, TV$ and its production in the $7^{th}$ year was $700 \, TV$. Find the production in the $1^{st}$ year,in the $10^{th}$ year,and the total production in $7$ years.

The list of numbers $-10, -6, -2, 2, \ldots$ is