This quiz works best with JavaScript enabled. Home > Unit V Mathematical Reasoning And Aptitude > Geometric Series – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Geometric Series Quiz 12 (10 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Find the common ratio for the geometric sequence 100, 50, 25, 12.5, ..... Then write the rule. A) 2; $t\left(n\right)=100\cdot2^n$. B) -2; $t\left(n\right)=200\cdot-2^n$. C) 1/2; $t\left(n\right)=200\cdot\left(\frac{1}{2}^{ }\right)^n$. D) -1/2; $t\left(n\right)=200\cdot\left(\frac{-1}{2}^{ }\right)^n$. Show Answer Correct Answer: C) 1/2; $t\left(n\right)=200\cdot\left(\frac{1}{2}^{ }\right)^n$. 2. What are the next two terms in the geometric sequence: 162, 54, 18, .....? A) $6,\ 2$. B) $6,\ 3$. C) $9,\ 2$. D) $9,\ 3$. E) $12,\ 6$. Show Answer Correct Answer: A) $6,\ 2$. 3. Find the next number in the series: 3, 9, 27, 81,? A) 121. B) 243. C) 169. D) 165. Show Answer Correct Answer: B) 243. 4. Which number comes next in the pattern?3, 6, 12, 24, 48, .....? ..... A) 51. B) 84. C) 86. D) 96. Show Answer Correct Answer: D) 96. 5. Look at this series, 3, 1.5,.75 ..... What number should come next? A) 1.5. B) 1. C) 2.5. D) 0.375. Show Answer Correct Answer: D) 0.375. 6. Identify the next two terms of the given sequence:-32, 16,-8, 4,-2, ..... A) 1 and $-\frac{1}{2}$. B) 1 and $\frac{1}{2}$. C) -1 and $-\frac{1}{2}$. D) -1 and $\frac{1}{2}$. Show Answer Correct Answer: A) 1 and $-\frac{1}{2}$. 7. Formula sum to infinity used in ..... A) Arithmetic Progression. B) Geometry Progression. C) Fourier Series. D) Sequence and Series. Show Answer Correct Answer: B) Geometry Progression. 8. Which number should come next in the series, 48, 24, 12, .....? A) 8. B) 6. C) 4. D) 2. Show Answer Correct Answer: B) 6. 9. Evaluate $\sum_{k\ =\ 1}^7\left(-2\right)^{k\-1\ }$ A) 44. B) $\frac{1}{3}$. C) 43. D) 49. Show Answer Correct Answer: C) 43. 10. What is the 8th term in the sequence below?3, 9, 27, 81, ..... A) 19,683. B) 6,561. C) 2,187. D) 729. Show Answer Correct Answer: B) 6,561. ← PreviousNext →Related QuizzesGeometric Series Quiz 1Geometric Series Quiz 2Geometric Series Quiz 3Geometric Series Quiz 4Geometric Series Quiz 5Geometric Series Quiz 6Geometric Series Quiz 7Geometric Series Quiz 8Geometric Series Quiz 9Geometric Series Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books