The $10^{\text{th}}$ term of the $AP: 5, 8, 11, 14, \ldots$ is

If the $9^{\text{th}}$ term of an $AP$ is zero,prove that its $29^{\text{th}}$ term is twice its $19^{\text{th}}$ term.

For the $A.P.$ $-2, -4, -6, \ldots,$ the common difference $d = \ldots$

For the finite $A.P.$ $5, 9, 13, \ldots, 101$,find the $9^{th}$ term from the end.

To clear a debt,Ajaybhai has to pay $Rs. 100$ in the first monthly instalment,$Rs. 150$ in the second monthly instalment,and onwards he has to pay in each monthly instalment $Rs. 50$ more than what was paid in the previous instalment. He has to pay $24$ monthly instalments in all. What amount will he pay in the $24^{th}$ instalment?

For an $A.P.$,the $p^{th}$ term is $q$ and the $q^{th}$ term is $p$. Find the general term of the $A.P.$