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SSC Board Practice
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Class VI
Class VII
Class VIII
Class IX
Class X
SSC Grade X - Progressions
Question
1
1.
Find the common ratio and the next four terms of the
following G.P.
3
,
6
,
12
. . .
√
4
;
6
√
2
;
12
;
12
√
2
;
24
√
9
;
48
;
96
;
192
;
384
√
4
;
15
√
5
;
75
;
75
√
5
;
375
√
4
;
24
;
48
;
96
;
192
√
9
;
24
;
48
;
96
;
192
Question
2
2.
Given a =
9
, d =
9
,
S
n
=
405
, find n
9
10
8
12
6
Question
3
3.
The first term of the G.P.
7
9
,
7
45
,
7
225
,
7
1125
,
7
5625
,
. . .
=
7
225
7
9
7
45
7
1125
7
5625
Question
4
4.
Find the common ratio and next four terms of the following G.P.
(
-1
5
)
,
(
-3
10
)
,
(
-9
20
)
. . .
2
1
2
;
(
-1
40
)
,
(
-1
80
)
,
(
-1
160
)
,
(
-1
320
)
3
2
;
(
-27
40
)
,
(
-81
80
)
,
(
-243
160
)
,
(
-729
320
)
2
1
2
;
(
-27
40
)
,
(
-81
80
)
,
(
-243
160
)
,
(
-729
320
)
2
1
2
;
(
-25
8
)
,
(
-125
16
)
,
(
-625
32
)
,
(
-3125
64
)
Question
5
5.
If a =
12
5
and b =
14
5
,
the arithmetic mean of a and b =
13
7
11
5
3
13
5
13
3
Question
6
6.
If a =
5
9
and d =
1
9
, find
t
9
of the A.P.
11
9
5
3
13
9
13
11
13
7
Question
7
7.
The common ratio of the G.P.
6
5
,
6
35
,
6
245
,
. . .
=
(
-1
7
)
1
7
1
9
3
7
1
5
Question
8
8.
Which term of the G.P.
5
,
20
,
80
,
. . .
is
320
?
t
4
t
3
t
2
t
5
t
6
Question
9
9.
Find the sum of first 84 natural numbers
3572
3570
3569
3571
3567
Question
10
10.
The sum of first three terms of an A.P. is
15
while their product is
45
.
Find the A.P.
1
,
5
,
9
,
. . .
2
,
6
,
10
,
. . .
1
,
4
,
7
,
. . .
4
,
8
,
12
,
. . .
1
,
2
,
3
,
. . .
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