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Mathematics
Problem
Quadrilateral PQRS is cyclic. If
∠
P
=
(
7
y
+
5
)
∘
\angle P = (7y+5)^{\circ}
∠
P
=
(
7
y
+
5
)
∘
and
∠
R
=
(
3
y
+
65
)
∘
\angle R = (3y+65)^{\circ}
∠
R
=
(
3
y
+
65
)
∘
, determine the value of
y
y
y
. a)
12
12
12
b)
11
11
11
c)
15
15
15
d)
10
10
10
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