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Class VI
Class VII
Class VIII
Class IX
Class X
SSC Grade X - Real Numbers
Question
1
1.
log
10
720
=
4
log
2
+
3
log
3
+
log
5
4
log
2
+
2
log
3
+
log
5
4
log
5
+
2
log
3
+
log
5
4
log
2
+
2
log
3
+
log
3
4
log
2
+
2
log
3
+
log
4
Question
2
2.
log
10
1
2
=
log
2
−
log
2
log
1
−
log
4
log
1
−
-1
log
2
log
1
−
log
2
log
0
−
log
2
Question
3
3.
If
log
2
x
=
a
and
log
2
y
=
b
, then
2
(
a
+
b
)
=
a
x
2
a
b
y
b
x
y
Question
4
4.
Simplify the expression
(-4)
8
✕
(-4)
8
✕
(-4)
8
(-6)
24
(-4)
23
(-4)
25
(-1)
24
(-4)
24
Question
5
5.
The
power
in the term
5
7
is
4
-7
-5
7
1
5
Question
6
6.
Find the exponential notation of
-3
✕
-3
✕
-3
✕
-3
(-3)
5
(-3)
4
(-5)
4
(-3)
3
(-3)
6
Question
7
7.
Simplify the expression
(
-5
9
)
7
✕
(
-5
9
)
7
(
-10
9
)
9
(
-10
9
)
4
(
-10
11
)
7
(
-10
7
)
7
(
-10
9
)
7
Question
8
8.
Find the number of prime factors of
10816
0
1
4
2
3
Question
9
9.
log
0.2250
+
log
0.2308
=
log
1.0519
log
8.0519
log
7.0519
log
0.0519
log
2.0519
Question
10
10.
log
22
2
−
log
22
2
=
log
22
-1
log
22
log
1
log
22
-2
log
22
2
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