Question 11 MarkDetermine the A.P. whose third term is 5 and seventh term is 9.Answer3, 4, 5, 6, 7,…View full question & answer→
Question 21 MarkIn an A.P. if the sum of third and seventh term is zero, find its 5th term.Answer0View full question & answer→
Question 31 MarkFind the common difference of the Arithmetic progression$\frac{1}{a}, \frac{3-a}{3 a}, \frac{3-2 a}{3 a}, \ldots \ldots(a \neq 0)$Answer$-\frac{1}{3}$View full question & answer→
Question 61 MarkIn an A.P., if the common difference d=-4, andthe seventh term $a_7$ is 4, then find the first term.Answer28View full question & answer→
Question 71 MarkWrite the nth term of the A.P. $\frac{1}{m}, \frac{1+m}{m}, \frac{1+2 m}{m}, \ldots$.Answer$\frac{m(n-1)+1}{m}$View full question & answer→
Question 81 MarkFind the 9th term from the end of the A.P. 5, 9, 13,..., 185.Answer153View full question & answer→
Question 91 MarkFor what value of k will the consecutive terms 2k + 1, 3k + 3 and 5k – 1 form on A.P.?Answer6View full question & answer→
Question 101 MarkIf the sum of first p term of an A.P. is $a p^2+b p$ find its common difference.Answer2aView full question & answer→
Question 111 MarkIf $\frac{4}{5}$, a, 2 are three consecutive terms of an A.P., then find the value of a.Answer$\frac{7}{5}$View full question & answer→
Question 121 MarkThe first term of an A.P. is p and its common difference is q. Find its 10th term.Answerp + 9qView full question & answer→
Question 131 MarkFor what value of p are 2p+1,13,5p-3 are three consecutive terms of an A.P.?Answer4View full question & answer→
Question 141 MarkWrite the common difference of an A.P. whose nth term is $a_n=3 n+7$.Answer3View full question & answer→
Question 151 MarkWrite 5th term from the end of the A.P. 3, 5, 7, 9, ...., 201.Answer193View full question & answer→
Question 161 MarkWrite the value ofx for which 2x, x + 10 and 3x + 2 are in A.Р.Answer6View full question & answer→
Question 171 MarkWrite the expression for the common difference of an A.P. whose first term is a and nth term is b.Answer$\frac{b-a}{n-1}$View full question & answer→
Question 181 MarkIf the sum of n terms of an A.P. is $S_n=3 n^2+5 n$ rite its common difference.Answer6View full question & answer→
Question 191 MarkWrite the sum of first n even natural numbers.Answern (n + 1)View full question & answer→
Question 201 MarkWrite the sum of first n odd natural numbers.Answer$n^2$View full question & answer→
Question 211 MarkWrite the nth term of an A.P. the sum of whose n terms is $S_n$.Answer$a_n=S_n-S_{n-1}$View full question & answer→
Question 221 MarkWrite the value of $a_{30}-a_{10}$ for the A.P. 4, 9, 14, 19,......Answer100View full question & answer→
Question 231 MarkWhich term of the sequence 114, 109, 104, .... is the first negative term?Answer24thView full question & answer→