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Geometric Questions 1
Q1)
Find term
6
of the following sequence:
200
100
50
25
12.5
. . . . .
Q2)
Find term
7
of the following sequence:
100
10
1
0.1
0.01
. . . . .
Q3)
Find term
9
of the following sequence:
0.1
0.3
0.9
2.7
8.1
. . . . .
Q4)
Find term
8
of the following sequence:
-3
-12
-48
-192
-768
. . . . .
Q5)
Find the sum of the first
20
terms of the sequence:
2
0.4
0.08
0.016
0.0032
. . . . .
Required Sum =
Q6)
Find the sum of the first
10
terms of the sequence:
8
4.8
2.88
1.728
1.0368
. . . . .
Required Sum =
Q7)
Find the sum of the first
30
terms of the sequence:
25
22.5
20.25
18.225
16.4025
. . . . .
Required Sum =
Q8)
Term
5
of a geometric sequence is
3888
Term
2
the same sequence is
18
Find the first term and the value of the ratio.
a =
r
1
=
List the first five terms of the sequence in both cases:
Using r
1
Q9)
Term
7
of a geometric sequence is
-1.25
Term
3
the same sequence is
-20
Find the first term and the possible values of the ratio.
a =
r
1
=
r
2
=
List the first five terms of the sequence in both cases:
Using r
1
Using r
2
Q10)
Term
8
of a geometric sequence is
69984
Term
3
the same sequence is
9
Find the first term and the value of the ratio.
a =
r
1
=
List the first five terms of the sequence in both cases:
Using r
1
Q11)
Term
6
of a geometric sequence is
6.075
Term
2
the same sequence is
1.2
Find the possible first terms and the possible values of the ratio.
a =
or
a =
r
=
or
r
=
List the first five terms of the possible sequences:
Q12)
Term
5
of a geometric sequence is
-162
Term
2
the same sequence is
-6
Find the possible first terms and the possible values of the ratio.
a =
r
=
List the first five terms of the possible sequences:
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