This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Mathematics Chapter 9 Sequences And Series – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 9 Sequences And Series Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Tuition today is $ 4, 300.00 per semester. Next year there will be a 2.5% increase. How much will tuition be next year? A) $ 4, 310.75. B) $ 4, 407.50. C) $ 5, 375.00. D) $ 15, 050.00. Show Answer Correct Answer: B) $ 4, 407.50. 2. Which formula would correctly determine the SUM of the first 8 terms of the following series. 80, 20, 5, ..... A) $a_n=80\left(4\right)^{8-1}$. B) $a_n=80\left(\frac{1}{4}\right)^{8-1}$. C) $S_n=\frac{80-80\left(4\right)^8}{1-4}$. D) $S_n=\frac{80-80\left(\frac{1}{4}\right)^8}{1-\frac{1}{4}}$. Show Answer Correct Answer: D) $S_n=\frac{80-80\left(\frac{1}{4}\right)^8}{1-\frac{1}{4}}$. 3. Write an arithmetic sequence that has three arithmetic means between 3.5 and 2.7. A) 3.5, 3.25, 3.05, 2.85, 2.7. B) 3.5, 3.35, 3.15, 2.95, 2.7. C) 3.5, 3.3, 3.1, 2.9, 2.7. D) 3.5, 3.4, 3.1, 2.8, 2.7. Show Answer Correct Answer: C) 3.5, 3.3, 3.1, 2.9, 2.7. 4. Find the common difference:-18, -23, -28, -33, ..... A) D =-5. B) D = 5. C) D =-3. D) D = 3. Show Answer Correct Answer: A) D =-5. 5. The sum of the 2nd term and the 3th term of an arithmetic sequence is 20 while the sum of the 5th term and the 6th term of the sequence is 32. The first term of the sequence is A) 2. B) 7. C) -2. D) -7. Show Answer Correct Answer: B) 7. 6. Mr. Carlson suffers from allergies. When allergy season arrives, his doctor recommends that he take 300 mg of his medication the first day, and decrease the dosage by one half each day for one week. Which "rule" represents his medication doses for the week? A) F(n)=(1/2)n. B) F(n)=300(1/2)$^{n-1}$. C) F(n)=(1/2)$^{n-1}$. D) F(n)=300+(1/2)n. Show Answer Correct Answer: B) F(n)=300(1/2)$^{n-1}$. 7. Find the sum of the finite arithmetic series7 + 14 + 21 + ..... + 105 A) 840. B) 620. C) 245. D) 1283. Show Answer Correct Answer: A) 840. 8. The common difference in the arithmetic sequence $\frac{1}{2}, \\frac{5}{6}, \\frac{7}{6}, \\frac{3}{2}, \\frac{11}{6}, \ ..... $ A) $\frac{5}{12}$. B) 3. C) 9. D) $\frac{1}{3}$. Show Answer Correct Answer: D) $\frac{1}{3}$. 9. Sally is making $ 13.50 per hour. She expects a salary increase of 3%. How much will she make in a 40-hour week at the new rate? A) $ 523.80. B) $ 556.20. C) $ 588.00. D) Not here. Show Answer Correct Answer: B) $ 556.20. 10. A geometric sequence has a first term a$_{1 }$= 360 and common ratio r= 1/2, what is the fifth term? A) 20.5. B) 21.5. C) 22.5. D) 23.5. Show Answer Correct Answer: C) 22.5. 11. A lemonade stand starts 10 weeks before the end of the summer. It makes $ 8 the first week, $ 11 the second week, $ 14 the third week, and so on. How much will it make for the whole summer? A) $ 80. B) $ 160. C) $ 215. D) $ 340. Show Answer Correct Answer: C) $ 215. 12. Insert three arithmetic means between 22 and 42. A) 24, 29 34. B) 25, 30, 35. C) 26, 31, 36. D) 27, 32, 37. Show Answer Correct Answer: D) 27, 32, 37. 13. Find the 7th term in the sequence when the first term is 2, and the common ratio is 4 A) 8192. B) 32768. C) 2048. D) 512. Show Answer Correct Answer: A) 8192. 14. The sum 1 + 3 + 5 + 7 +9 equals A) $4^2$. B) $5^2$. C) $6^2$. D) $9^2$. Show Answer Correct Answer: B) $5^2$. 15. Find the missing terms:8, 16, 32, ..... , 128, ..... A) 64 & 265. B) 43 & 263. C) 64 & 256. D) 58 & 265. Show Answer Correct Answer: C) 64 & 256. 16. Which kind of sequence has a common difference? A) Arithmetic. B) Geometric. C) All the above. D) None of the above. Show Answer Correct Answer: A) Arithmetic. 17. A newly-opened bakery initially ordered 50 kilograms of flour from its supplier. The demand for their malunggay pandesal went up so the order of flour increased by 10% every week. How many kilograms of flour will the supplier provide in the 8$^{th}$ week? A) 91.44 kilograms. B) 97.44 kilograms. C) 98.44 kilograms. D) 100.44 kilograms. Show Answer Correct Answer: B) 97.44 kilograms. 18. Classify the following sequence as arithmetic, geometric, or neither:-9, -6, -3, 0, 3, 6, ..... A) Geometric. B) Arithmetic. C) Neither. D) None of the above. Show Answer Correct Answer: B) Arithmetic. 19. What is $A_1$ A) -9. B) +4. C) -5. D) -1. Show Answer Correct Answer: C) -5. 20. What is a$_{5}$ if a$_{n}$ = 2*4$^{n}$? A) 32, 768. B) 2048. C) All the above. D) None of the above. Show Answer Correct Answer: B) 2048. 21. You and your friend are going to a private concert. The first row in the venue seats 8. Each row after has 3 more in it then the row before. If there are 10 rows in this venue, how many seats are in the venue? A) $215$. B) $210$. C) $197$. D) $201$. Show Answer Correct Answer: A) $215$. 22. Evaluate the geometric series described. $3+15+75+375 ..... , \\\\n=6$ A) 11, 718. B) 10, 603. C) 9, 769. D) $-\frac{3}{4}$. Show Answer Correct Answer: A) 11, 718. 23. A sequence in which each term is obtained by multiplying the preceding term by a constant is called a/an ..... A) Arithmetic Sequence. B) Infinite Sequence. C) Finite Sequence. D) Geometric Sequence. Show Answer Correct Answer: D) Geometric Sequence. 24. Find the sum of the first 9 terms in the arithmetic sequence.2, -7, -16 ..... A) 324. B) -324. C) -306. D) -17. Show Answer Correct Answer: C) -306. 25. Write the equation for the arithmetic sequence below.-15, -13, -11, -9, ..... Formula:$a_n=a_1+d\left(n-1\right)$ A) $a_n=-2n-17$. B) $a_n=15n+2$. C) $a_n=2n-17$. D) $a_n=2n-15$. Show Answer Correct Answer: C) $a_n=2n-17$. ← 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