This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Mathematics Chapter 9 Sequences And Series – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 9 Sequences And Series Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Find the 8th term in the sequence3, 5, 7, 9, 11, ..... A) 13. B) 15. C) 17. D) 19. Show Answer Correct Answer: C) 17. 2. A brick wall has 60 bricks in the first row, but each row has 3 fewer bricks than the previous one. How many bricks are in the 12th row? A) 32. B) 30. C) 27. D) 24. Show Answer Correct Answer: C) 27. 3. A pile of bricks has 97 bricks in the first row, 91 bricks in the second row, 85 bricks in the third row, and so on until there is only one brick in the top row.How many bricks are in the 15th row? A) 0 bricks. B) 1 brick. C) 7 bricks. D) 13 bricks. Show Answer Correct Answer: D) 13 bricks. 4. What are the next three terms of the sequence:9, 10, 11, ..... A) 13, 15, 17. B) 8, 7, 6. C) 12, 13, 14. D) 11, 12, 13. Show Answer Correct Answer: C) 12, 13, 14. 5. Find the sum of the first 9 terms of arithmetic progressions 21, 15, 9, ..... A) -27. B) 27. C) -20. D) 20. Show Answer Correct Answer: A) -27. 6. A formula that requires the computation of all previous terms to find the value of a$_{n}$. A) Explicit Formula. B) Recursive Formula. C) Arithmetic Formula. D) Geometric Formula. Show Answer Correct Answer: B) Recursive Formula. 7. The value by which a geometric sequence is altered. A) Geometric Sequence. B) Common Ratio. C) Geometric Mean. D) Common Law. Show Answer Correct Answer: B) Common Ratio. 8. $Evaluate:\\\sum_{i=1}^3\frac{i+2}{i}$ A) 3. B) 6. C) 9. D) None of the above. Show Answer Correct Answer: B) 6. 9. Which of the following sequence is an arithmetic? A) 1, 2, 4, 8, . B) 4, -5, -14, -25. C) $1, \\frac{1}{2}, \frac{1}{3}, \frac{1}{4}$. D) 6.3, 9.44, 12.58, 15.72. Show Answer Correct Answer: D) 6.3, 9.44, 12.58, 15.72. 10. Evaluate each series described (n is the number of terms in the series):2 + 6 + 10 + 14 + ..... , n = 8 A) 128. B) 494. C) 256. D) 30. Show Answer Correct Answer: A) 128. 11. Find the sum:3 + 8 + 13 + 18 + ..... + 98 A) 1010. B) 140. C) 959.5. D) 909. Show Answer Correct Answer: A) 1010. 12. How many terms are there in a geometric series if the first term is 3, the common ratio is 4 and the sum is 1023? A) 4. B) 5. C) 6. D) 7. Show Answer Correct Answer: B) 5. 13. Calculate the sum of the first 4 terms of the geometric series $2, 6, 18, ..... $ A) 80. B) 120. C) 160. D) 242. Show Answer Correct Answer: A) 80. 14. Evaluate the arithmetic series described:0-7-14-21 ..... , S$_{}$$_{17}$ A) -959. B) -1904. C) -952. D) -1918. Show Answer Correct Answer: C) -952. 15. Given the sequence 35, 41, 47, 53, ..... , ..... , 71, insert two arithmetic means. A) 43 and 47. B) 59 and 65. C) 72 and 81. D) 90 and 97. Show Answer Correct Answer: B) 59 and 65. 16. $8+16+24+ ..... +1600$ A) 160, 792. B) 159, 200. C) 160, 800. D) 162, 408. Show Answer Correct Answer: C) 160, 800. 17. What is the next term in the geometric sequence 0.75, 3, 12, 48, ..... ? A) 96. B) 144. C) 192. D) 240. Show Answer Correct Answer: C) 192. 18. What sequence follows the formula a$_{}$$_{n }$=4n+11 A) 4, 15, 26, 37 . B) 15, 19, 23, 27 . C) 15, 26, 37, 48 . D) 11, 15, 19, 23 . Show Answer Correct Answer: C) 15, 26, 37, 48 . 19. S$_{n}$ = (n/2) (a$_{1}$ + a$_{n}$)What formula is this? A) Explicit Arithmetic Formula. B) Explicit Geometric Formula. C) Finite Arithmetic Series Formula. D) Finite Geometric Series Formula. Show Answer Correct Answer: C) Finite Arithmetic Series Formula. 20. Write the explicit equation for the geometric sequence:5, 15, 45, 135, ..... ? A) $t\left(n\right)=3\left(5\right)^{n-1}$. B) $t\left(n\right)=5\left(3\right)^{n-1}$. C) $t\left(n\right)=5n+3$. D) $t\left(n\right)=3n+5$. Show Answer Correct Answer: B) $t\left(n\right)=5\left(3\right)^{n-1}$. 21. The first term of a geometric sequence is 5 and the sixth term is 160.What is the common ratio A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 22. Find the 23rd term of the sequence: A) 35. B) 36. C) 37. D) 39. Show Answer Correct Answer: C) 37. 23. A$_{1}$=5, a$_{2}$=11, a$_{15}$=? A) 95. B) 89. C) 81. D) 159. Show Answer Correct Answer: B) 89. 24. Write a recursive rule for the sequence-10, -3, 4, 11, ..... A) A$_{n }$= a$_{n-1}$-7. B) A$_{n }$= a$_{n-1}$ + 8. C) A$_{n }$= a$_{n-1}$-8. D) A$_{n }$= a$_{n-1}$ + 7. Show Answer Correct Answer: D) A$_{n }$= a$_{n-1}$ + 7. 25. What is the sum of the first TEN terms of the geometric series with r = 3 and first term 0.5? A) 14762. B) 14000. C) 147. D) 546.5. Show Answer Correct Answer: A) 14762. ← PreviousNext →Related QuizzesClass 11 Mathematics Chapter 9 Sequences And Series Quiz 1Class 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 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books