Question 13 MarksThe first term of a GP is 27 and its 8th term is $\frac{1}{81}$. Find the sum of its first 10 terms.AnswerSelfView full question & answer→
Question 23 MarksThe sum of $n$ terms of a progression is $3^n-1$. Show that it is a GP. Find its common ratio.AnswerSelfView full question & answer→
Question 33 MarksHow many terms of the GP $1,4,16,64, \ldots$ will make their sum 5461 ?AnswerSelfView full question & answer→
Question 43 MarksDetermine the number of terms $n$ in the GP $T _1, T_2 \ldots \ldots T_n$, if $T _1=3, T_n=96$ and $S _n=189$.AnswerSelfView full question & answer→
Question 53 MarksFind the sum : $243+324+432+\ldots$ up to $n$ terms.AnswerSelfView full question & answer→
Question 63 MarksThe first term of a GP is 1 . The sum of the third and fifth terms is 90 . Find the common ratio of the GP.AnswerSelfView full question & answer→
Question 73 MarksThe third term of a GP is 4. Find the product of its first five terms.AnswerSelfView full question & answer→
Question 83 MarksThe 4th, 9th and last terms of a GP are 10, 320 and 2560 respectively, find the first term and the number of terms in the GP.AnswerSelfView full question & answer→
Question 93 MarksIf the 4th and 7th terms of a GP are $\frac{1}{18}$ and $\frac{-1}{486}$ respectively, then find the GP.AnswerSelfView full question & answer→
Question 103 MarksFind the 6th term from the end of the GP $8,4,2,1, \frac{1}{2} \ldots \frac{1}{1024}$.AnswerSelfView full question & answer→
Question 113 MarksWhich term of the GP $5,10,20, \ldots$ is $20480$?AnswerSelfView full question & answer→