Sequence and Series

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Question 20

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

Question 19

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

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