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Question

In the figure, two lines intersect at O. If x = 75, find u + y.


A

315

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B

105

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C

210

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D

270

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Solution

The correct option is C

210


Given, x = 75
Hence, z = 75 (vertically opposite angles)

x + y = 180 (by linear pair)

75 + y = 180

y = 18075

i.e, y = 105

Now, y = u (vertically opposite angles)

Therefore, u = 105
Hence, u + y = 210


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