## Question 8

Find the sum of the first 11 terms of an A.P. with first term 2 and the common difference 3

Maths is funny

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Find the sum of the first 11 terms of an A.P. with first term 2 and the common difference 3

Find the sum of the first 10 terms of the A.P, 3+10+17+….

What is the common ratio of the G.P $(\sqrt{10}+\sqrt{5})+(10+2\sqrt{5})+\cdot \cdot \cdot $ ?

The 4^{th} term of an AP is 13 while the 10^{th} term is 31. Find the 24^{th} term

$\begin{align} & \text{The }nth\text{ term of the progression }\tfrac{4}{2},\tfrac{7}{3},\tfrac{10}{4},\tfrac{13}{4},\cdot \cdot \cdot \text{ is} \\ & (A)\text{ }\tfrac{3n-1}{n+1}\text{ }(B)\text{ }\tfrac{1-3n}{n+1}\text{ }(C)\text{ }\tfrac{3n+1}{n+1}\text{ (D) }\tfrac{3n+1}{n-1} \\\end{align}$

$\begin{align} & \text{If the sum of the first term of G}\text{.P is 3, and the sum of the second and} \\ & \text{the third term is }-6,\text{ find the sum of the first term and the common ratio} \\ & \text{(A) 5 (B) }-2\text{ (C) }-3\text{ }(D)\text{ }-5 \\\end{align}$

The sum to infinity of a geometric progression is $-\tfrac{1}{10}$and the first term is $-\tfrac{1}{8}$.Find the common ratio of the progression.

The *n*th term of a sequence ${{n}^{2}}-6n-4$. Find the sum of the 3^{rd} and 4^{th} terms.

The second term of a geometric series is 4, while the fourth term is 16. Find the sum of the first five terms

Find the sum of the first 18 terms of the series 3, 6, 9, -, -, -, 36.