Test | SmartLearner

Name: Test 1
Created By: C. Reddy
Max Time: 15 mins

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1. Consider the arithmetic sequence: 13; 11; 9; ... ; -35. The 15th term in the sequence is:
35
25
20
-15

2. Consider the arithmetic sequence: 13; 11; 9; ... ; -35. How many terms are in this sequence?
15
20
25
35

3. The 4th term of an arithmetic sequence is 13 and the 11th term is 41. What is the common difference?
4
1
3
5

4. The 4th term of an arithmetic sequence is 13 and the 11th term is 41. Find the 6th term.
18
19
21
20

5. Consider the geometric sequence: 2; 4; 8; ... ; 2048. The 8th term of the sequence is:
1024
32
64
256

6. Consider the geometric sequence: 2; 4; 8; ... ; 2048. The sequence has
11 terms
9 terms
10 terms
12 terms

7. The terms (3x + 1); (x + 3) and (x - 1) are the first three consecutive terms in a geometric sequence in which x is NOT equal to 1. What is the numerical value of x?
27
9
5
25

8. The terms (3x + 1); (x + 3) and (x - 1) are the first three consecutive terms in a geometric sequence in which x is NOT equal to 1. Determine the 4th term.
16
2
64
32

9. The sum of the first n terms of a series is given by the formula S_n = 3n² + 2n. Identify the first term.
2
16
-14
5

10. The sum of the first n terms of a series is given by the formula S_n = 3n² + 2n. Calculate the 20th term in the series.
119
120
125
129