Find `n` if the given value of `x` is the `n t h` term of the given A.P. `25 ,\ 50 ,\ 75 ,\ 100 ,\ . . . . , ;\ x=1000` (ii) `-1,\ -3,\ -5,\ -7,\ ;\ \ x=-151`

Find n if the given value of x is the nth term of the given A.P (i)25,50,75,100,dots;x=1000

Find n if the given value of x is the nth term of the given A.P.25,50,75,100,...,;x=1000( ii) -1,-3,-5,-7,quad x=-151

Find n if the given value of x is the n t h term of the given A.P. (i)5 1/2,\ 11 ,\ 16 1/2,\ 22 ,\ dot;\ \ x=550 (ii) 1,(21)/(11),(31)/(11),(41)/(11),\ ddot,\ \ \ x=(171)/(11)

Find the 12 t h ,\ 24 t h and n t h term of the A.P. given by 9,\ 13 ,\ 17 ,\ 21 ,\ 25 ,\

Find the n^(th) term of an A.P. given a=5 & d=-2 .

Find the sum to n term of the A.P.1,3,5,7.....

Find the n^(th) term of an A.P. given a=-3 and d=4 .

Find the general term of the A.P. given by : x+b, x + 3b, x + 5b,...........

Find n if the given value of x is the nth term of the given A.P.5(1)/(2),11,16(1)/(2),22,quad ;x=550(ii)1,(21)/(11),(31)/(11),(41)/(11),quad ;quad x=(171)/(11)

Find the sum of first n term of the A.P., whose nth term is given by (2n+1).