Marcial O.Rañola Memorial School Guinobatan, Albay Summative Test First Grading Period SY 2021 – 2022 Name:_______________________ Grade and Section:____________ Date:____ Direction: Choose the letter corresponding to the best answer. 1. What is the next number in the sequence 36, 30, 24, 18, …? a. 12 b. 11 c. 10 d. 9 2. What is the nth term of the sequence 11, 16, 21, 26, …? a. ???????? = 6???? + 5 b. ???????? = 6???? − 5 c. ???????? = 5???? + 6 d. ???????? = 5???? − 6 3. What is the 8th term of the sequence ???????? = 6???? − 7? a. 29 b. 30 c. 31 d. 41 4. If the terms of an arithmetic sequence are in increasing order, then the common difference is a. positive b. negative c. greater than 1 d. less than 1 5. Which of these following expressions represents the fourth term of an arithmetic sequence? a. ????1 + 3 b. ????1 + 4 c. ????1 + 4???? d. ????1 + 3???? 6. Which of the following describes an arithmetic sequence? 1 a. ???????? = 6????2 b. . ???????? = 6???? c. ???????? = d. . ???????? = 6???? 6???? 7. Which of these words has the same meaning as arithmetic mean? a. p roduct b. difference c. average d. sum 8. A term that is between two terms of an arithmetic sequence is called an arithmetic ________. a. series b. progression c. term d. mean 9. How many arithmetic means may be inserted between two terms of an arithmetic sequence? a. 1 b. 2 c. any number d. none of these 10. Which of the following values cannot be a common ratio of a geometric sequence? a. -1 b. 1 c. 0 d. ½ 11. Which of the following is a geometric sequence? a. 3, 7, 11, 15, … b. 1/2, 1/3, 2/9, … c. 4, 4.5, 5, … d. 2, 3, 5, 8, … 12. What is the common ratio of the sequence whose first term and third terms are 2 and 32, respectively? a. ±2 b. ±4 c. -8 d. 8 13. An arithmetic sequence has a common difference while a geometric sequence has a common ________. a. sum b. product c. ratio d. none of these 14. Which of the following is an arithmetic sequence? a. 1/2, 1, 3/2, … b. 1, -1, 1, -1, … c. 1/2, 1/4, 1/8, … d. -2, 4, -8, … 15. Which of these is a geometric sequence? a. 2, 5, 8, 11, … b. 1, 0, 0, 0, … c. -2, 4, -8, … d. -2, -4, -6, …
16. Which of the following is NOT a property of a geometric sequence? a. The next term other than the first is obtained by multiplying by a constant. b. The signs of the terms change alternately. c. The terms increase at a constant rate. d. The ratio between any two consecutive terms is constant. 17. The geometric mean between a and b is ????+???? a. 2 c . √???????? b. √???? + ???? d. ±√???????? 18. The indicated sum of an arithmetic sequence is called arithmetic ________. a. s e r i e s b. mean c. difference d. average 19. In the sequence 5, 10, 20, …, what term is 320? a. 6th b. 7th c. 8th d. 9th 20. To find the next term of a geometric sequence, we __________ the preceding term by the common ratio. a. increase b. divide c. multiply d. decrease 21. In a geometric sequence, the ________ between any two successive terms is constant. a. ratio b. difference c. sum d. product 22-23. The arithmetic between two numbers is 10 and their geometric mean is 6. Find the two numbers. a. 4 and 16 b. 2 and 18 c. 5 and 15 d. 8 and 12 24. The sequence 5, a, b, c, d, 25 is an arithmetic sequence. Find the value of c. a. 13 b. 15 c. 17 d. 19 25. A finite sequence has twelve terms. If the first and last terms are 5 and 49, respectively, what is the common difference? a. 3 b. 4 c. 5 d. 6 26. Find the geometric mean between 5 and 15/4. 5√3 5√2 5√2 5√3 a. 2 b. 3 c. ± 3 d. ± 2 27. Which arithmetic sequence has the greater sum? M = 3, 6, 9, …, 45 N = 2, 4, 6, …, 36 a. M b. N c. they have the same sum d. cannot be determined 28. Which of the two sequences below has the greater number of terms? P = 1, 2, 3, …, 41 Q = 3, 6, 9, …, 123 a. P b. Q c. They have the same number of terms. d. cannot be determined 29. How many two-digit numbers are there which are divisible by 7? a. 11 b. 12 c. 13 d. 14 30. Sequence A and Sequence B are finite arithmetic sequences with n = 12. Which sequence has the higher last term? A = 1, 3, 5, … B = 56, 53, 50, … a. A c. last terms are equal b. B d. cannot be determined