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In the diagram, MN//PO, o, o, o and o: Find the value of y

In the diagram, MN//PO, o, o, o and o. Find the value of y

A.
51^o
B.
54^o
C.
56^o
D.
68^o

Correct Answer: Option B

Explanation

In (bigtriangleup) NPO + PNO + PNO + o(sum of interior angles of a (bigtriangleup) )
i.e. NPO + 129 + 37 = 180oo (alt.

In (bigtriangleup) MPN
i.e. 112 + 14 + y = 180^o
y = 180 – (112 + 14) = 180 – 126 = 54^o