Question 11 Mark$k^{\text {th }}$ term of on AP $1,5,9,13$ is $45$ then find the value of $k=$ _________ $(21,11,12)$Answer$12$View full question & answer→
Question 21 MarkThe sum of $2 n$ terms of an AP 2, $5,8 \ldots$ is $S _1$ and The sum of $n$ terms is $S _2$ If $S _1= S _2$ then find $n$=_____________ $(101,11,21)$Answer$11$View full question & answer→