In an $AP$,if $d = -4$,$n = 7$,and $a_{n} = 4$,then $a$ is

How many multiples of $4$ lie between $10$ and $250$?

Two $AP$s have the same common difference. The first term of one of these is $-1$ and that of the other is $-8$. Then the difference between their $4^{\text{th}}$ terms is

Find the value of the middle most term$(s)$ of the $AP:$ $-11, -7, -3, \ldots, 49$.

In the following $APs,$ find the missing terms in the boxes: $-4, \square, \square, \square, \square, 6$

What is the common difference of an $AP$ in which $a_{18}-a_{14}=32$?