MathematicsMedium178×since 2002Q5259If the sum of the second, third and fourth terms of a positive term G.P. is 3 and the sum of its sixth, seventh and eighth terms is 243, then the sum of the first 50 terms of this G.P. is :A213(350−1){2 \over {13}}\left( {{3^{50}} - 1} \right)132(350−1)B113(350−1){1 \over {13}}\left( {{3^{50}} - 1} \right)131(350−1)C126(349−1){1 \over {26}}\left( {{3^{49}} - 1} \right)261(349−1)D126(350−1){1 \over {26}}\left( {{3^{50}} - 1} \right)261(350−1)Check answerSkip