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Standard X
Mathematics
Solving Inequalities
If 2x < 9 a...
Question
If
2
x
<
9
and
3
x
>
11
, then find from the following possible value of
x
.
A
1
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B
2
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C
3
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D
4
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E
5
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Solution
The correct option is
D
4
Given,
2
x
<
9
and
3
x
>
11
→
2
x
<
9
⇒
x
<
9
2
⇒
x
<
4.5
and
3
x
>
11
⇒
x
>
11
3
⇒
x
>
3.66
Value of
x
lies between
3.66
and
4.5
.
So, value of
x
will be
4
among the given numbers.
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then the product of the possible value of x is
Q.
If
3
(
x
+
5
)
−
(
x
+
2
)
=
2
x
−
3
x
+
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, then find the value of
x
.
Q.
If
(
2
x
+
3
)
(
3
x
−
4
)
(
x
−
1
)
(
4
x
+
5
)
=
f
(
x
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−
5
9
(
x
−
1
)
+
31
18
(
4
x
+
5
)
then
f
(
x
)
=
k
/
2
. Find the value of
k
.
Q.
If
∣
∣ ∣
∣
x
+
2
2
x
+
3
3
x
+
4
2
x
+
3
3
x
+
4
4
x
+
5
3
x
+
5
5
x
+
8
10
x
+
17
∣
∣ ∣
∣
=
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then find value of
x
Q.
If
3
x
−
1
4
−
2
x
+
5
3
=
5
2
−
2
x
,
then the value of x is equal to :
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