WorksheetsGeometric Series
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Evaluate the geometric series 1−2+4−8, ..., n=8
a)
31
b)
-86
c)
-87
d)
-85
2.
−3, 6, −12, 24, .... Find the common ratio
a)
3
b)
-2
c)
2
d)
21
3.
What is the sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?
a)
59,050
b)
-59,048
c)
-78,732
d)
118,096
4.
What is the sum of the first three terms of the sequence 3, 15, 75,375...?
a)
15
b)
67
c)
93
d)
125
5.
What is the sum of the first seven terms of the sequence 3, 6, 12, 24, ...?
(a)
6.
What is the sum of the first ten terms of the sequence 4, -12, 36, -144 . . . ?
a)
59,050
b)
-59,048
c)
-78,732
d)
118,096
7.
Find the sum of the geometric series.
2 + 12 + 72 + 432
a)
432
b)
518
c)
211
d)
438
8.
Find the sum of geometric series.
−2 + 6 − 18 + 54 −162
a)
-118
b)
5
c)
-122
d)
201
9.
It is the sum of the terms of the geometric sequence.
a)
geometric series
b)
arithmetic series
c)
fibonacci series
d)
harmonic series
10.
Find the sum of the n terms when
a1=4 , r = -5 and n = 4
a)
416
b)
-416
c)
775
d)
-775
100 %
