This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Mathematics Chapter 9 Sequences And Series – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 9 Sequences And Series Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Write an equation for the nth term of this arithmetic sequence:19, 31, 43, 55, ..... A) $a_n$. B) $a_n$. C) $a_n$. D) $a_n$. Show Answer Correct Answer: A) $a_n$. 2. What are the first four terms where a$_{1}$ =-16 and a$_{n}$ = a$_{n-1}$ + 5?Like question 2-4 on review sheet. A) -16, -21, -26, -31. B) 5, -11, -27, -43. C) -16, -80, -500, -200. D) -16, -11, -6, -1. Show Answer Correct Answer: D) -16, -11, -6, -1. 3. What is the equation for the general term of an arithmetic sequence? A) $u_n=u_1+\left(n-1\right)d$. B) $S_n=\frac{n}{2}\left(u_1+u_n\right)$. C) $u_n=u_1\left(r\right)^{n-1}$. D) $S_n=\frac{u_1\left(1-r^n\right)}{1-r}$. Show Answer Correct Answer: A) $u_n=u_1+\left(n-1\right)d$. 4. In what type of sequence do you ADD a constant value to the previous term? A) Arithmetic. B) Geometric. C) All the above. D) None of the above. Show Answer Correct Answer: A) Arithmetic. 5. Continues without end. A) Series. B) Finite Series. C) Infinite Series. D) Arithmetic Series. Show Answer Correct Answer: C) Infinite Series. 6. A list of numbers that follow a certain pattern A) Sequence. B) Series. C) All the above. D) None of the above. Show Answer Correct Answer: A) Sequence. 7. The third term of an arithmetic sequence is 12 and the sum of the first eight terms is 168. Find the 14th term. A) 78. B) -78. C) -70. D) 70. Show Answer Correct Answer: A) 78. 8. What is the 8th term in the sequence below?3, 9, 27, 81, ..... A) $6561$. B) 6561 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $6561$. 9. What is the rate of change of this sequence?7, 14, 21, 28, 35 A) 2. B) 7. C) 4. D) 14. Show Answer Correct Answer: B) 7. 10. Given the formula for a geometric sequence, r stands for A) Common difference. B) Wanted term. C) Common ratio. D) First term. Show Answer Correct Answer: C) Common ratio. 11. Given $a_{28}=-\frac{157}{9}, \d=-\frac{2}{3}$ $a_{25}$ A) $-\frac{139}{9}$. B) $-\frac{139}{3}$. C) $-\frac{133}{9}$. D) $-\frac{133}{3}$. Show Answer Correct Answer: A) $-\frac{139}{9}$. 12. Expand and evaluate the series. $\sum_{n=1}^{10}\left(n-2\right)^2$ A) 205. B) 149. C) 82. D) -110. Show Answer Correct Answer: A) 205. 13. Four people each did two good deeds. What is the equation to solve how many good deeds are done each stage? How many good deeds were done after the 5th stage? A) 32. B) 64. C) 128. D) 972. Show Answer Correct Answer: C) 128. 14. What formula best represents the sequence14, 1, -12, -25, -38, A) A$_{n}$= 14-13(n-1). B) A$_{n}$= 14 + 13(n-1). C) A$_{n}$= 14(-13)$^{(n-1)}$. D) A$_{n}$= 14(13)$^{(n-1)}$. Show Answer Correct Answer: A) A$_{n}$= 14-13(n-1). 15. Find the common ratio for the geometric sequence that has first term is 3 and fifth term is 48. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 16. Find the sum of the first 10 terms of geometric sequences-240, 48, -9.6, 1.92, ..... A) -100. B) 100. C) 200. D) -200. Show Answer Correct Answer: D) -200. 17. Insert three arithmetic means between 10 and 12 A) $\frac{19}{2}, \frac{21}{2}, \frac{23}{2}$. B) $\frac{21}{2}, 11, \frac{23}{2}$. C) $\frac{17}{2}, \frac{19}{2}, \frac{21}{2}$. D) $\frac{17}{2}, \\frac{18}{2}, \frac{19}{2}$. Show Answer Correct Answer: B) $\frac{21}{2}, 11, \frac{23}{2}$. 18. Jill started with $ 20 in her bank savings account. She wanted to save $ 10 a week each week. How much money will Jill have saved by week 4?Week 1:$ 30Week 2:Week 3:Week 4:Week 5:Week 6: A) $ 40. B) $ 50. C) $ 60. D) $ 80. Show Answer Correct Answer: C) $ 60. 19. Does this sequence converge or diverge? A) Converges to 0. B) Converges to 1. C) Converges to 5. D) Diverges. Show Answer Correct Answer: A) Converges to 0. 20. Evaluate:$\sum_{x=2}^{11}\left(5x-2\right)$ A) 305. B) 503. C) 53. D) 8. Show Answer Correct Answer: A) 305. 21. The set of natural numbers N is A) Bounded. B) Bounded below but not above. C) Bounded above but not below. D) Neither bounded above nor bounded below. Show Answer Correct Answer: B) Bounded below but not above. 22. Find the indicated nth partial sum of the arithmetic sequence.-3.1, -0.5, 2.1, 4.7, ..... , n = 15 A) -286.5. B) 265.5. C) 226.5. D) 232.2. Show Answer Correct Answer: C) 226.5. 23. Write 1 + 2 + 3 + ..... + 10 using sigma notation A) $\sum_{d=1}^9d$. B) $\sum_{d=1}^{10}d+1$. C) $\sum_{d=1}^{10}d$. D) None of the above. Show Answer Correct Answer: C) $\sum_{d=1}^{10}d$. 24. Which formula represents this arithmetic sequence:2, 8, 14, ..... A) 4n. B) N + 6. C) 3n + 2. D) 5n-2. Show Answer Correct Answer: B) N + 6. 25. When the calculated sum does not approach a certain value. A) Limits. B) Geometric Series. C) Converges. D) Diverges. Show Answer Correct Answer: D) Diverges. Next →Related QuizzesClass 11 Mathematics Chapter 9 Sequences And Series Quiz 2Class 11 Mathematics Chapter 9 Sequences And Series Quiz 3Class 11 Mathematics Chapter 9 Sequences And Series Quiz 4Class 11 Mathematics Chapter 9 Sequences And Series Quiz 5Class 11 Mathematics Chapter 9 Sequences And Series Quiz 6Class 11 Mathematics Chapter 9 Sequences And Series Quiz 7Class 11 Mathematics Chapter 9 Sequences And Series Quiz 8Class 11 Mathematics Chapter 9 Sequences And Series Quiz 9Class 11 Mathematics Chapter 9 Sequences And Series Quiz 10Class 11 Mathematics Chapter 9 Sequences And Series Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books