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Standard XII
Mathematics
Question
In Fig, if
y
x
=
5
and
z
x
=
4
, then the value of x is
8
0
18
0
12
0
15
0
A
8
0
B
18
0
C
12
0
D
15
0
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Solution
Verified by Toppr
Being every variable in terms of 'x'
y
x
=
5
y
=
5
x
z
x
=
4
z
=
4
x
Now according to the figure
x
+
y
+
x
=
180
∘
⇒
x
+
5
x
+
4
x
=
180
∘
⇒
10
x
=
180
∘
⇒
x
=
180
∘
10
⇒
x
=
18
∘
∴
so the answer is B.
18
∘
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