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Bunuel

In the figure, the ratio of x to y is 2. What is the value of y ?

(A) 108
(B) 90
(C) 68
(D) 45
(E) 36


Attachment:
2017-06-21_1256.png
Solve in terms of y. Ratio of x to y is 2:

\(\frac{x}{y} = \frac{2}{1}\)

x = 2y

A straight line is 180 degrees, so

y + x + y = 180

y + (2y) + y = 180

4y = 180

y = 45

Answer
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As, x/y = 2 or x = 2y

As per the diagram, we know - x+y+y = 180

2y+y+y = 180

4y = 180

y = 45



Answer is D - 45
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Bunuel

In the figure, the ratio of x to y is 2. What is the value of y ?

(A) 108
(B) 90
(C) 68
(D) 45
(E) 36


Attachment:
2017-06-21_1256.png

ratio of x to y is 2.
-> x/y = 2/1
-> x = 2y

Also according to figure x+ y+ y = 180
-> 2y + y + y = 180
-> 4y = 180
-> y = 45

Answer D.
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