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Worksheetspost test
Total questions: 15
Worksheet time: 8mins
1. What is the common difference of the arithmetic sequence? 3, 10, 17, 24, ...
a. 3
b. -7
c. 10
d. 7
2. The first four terms of an arithmetic sequence are 8, 14, 20 and 26. What is the 12th term?
a. 12
b. 74
c. 68
d. 80
3. What is NOT true about the following arithmetic sequence: 25, 32, 39, 46, …
a. The common difference is 7.
b. The 7th term is 60.
c. The 6th term is 60.
d. The general rule is a(n) = 18 + 7n.
4. What is the 8th term of the following arithmetic sequence: -5, -1, 3, 7, 11, ..
a. 23
b. 19
c. 27
d. 22
5. Which of the following is not an arithmetic sequence.
a. 1, 2, 3, 4, 5, …
b. b. 3, 9, 27, 81, ...
c. 4.5, 5.0, 5.5, 6.0, …
d. 13, 2, -9, -20, -31 …
6. An=3n+2 and bn=2-3n and Cn=An+bn. Find C4?
a. -4
b. 12
c. 28
d. 4
7. -7,-4,-1,2,5… is an arithmetic sequence. What is the common difference?
a. -3
b. 3
c. 4
d. -4
8. If an=2n-8, then which one is not a term of this sequence?
a. 13
b. 16
c. 204
d. 198
9. If a3=11 and a5=7 and ak is the k-th term of the sequence and ak=-9, then what is the value of k?
a. 11
b. 12
c. 13
d. 14
10. A1=-3 and a5=5. Find a10?
a. 14
b. 15
c. 16
d. 17
11. If a1=4 and the common is 3, then what is the sum of the first twenty terms of the sequence?
a. 620
b. 630
c. 640
d. 650
12. A3=4 and a5=14. What is the common difference?
a. 6
b. 5
c. 4
d. 3
13. a1= 3 and a2=7. Which is true?
a. An = 4n-3
b. An =4n-1
c. An=4n+3
d. An=4n+1
14. 3,-2,-7… is an arithmetic sequence. What is the common difference of the sequence?
a. 1
b. -5
c. 5
d. -1
15. Which of the following is an arithmetic sequence?
a. 1,2,3,5,7,9…
b. 1,10,20,30…
c. 1,-1,-3,-5…
d. 7,-7,7,-7...
