If $x:y=4:5$, then what is the value of

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Ratios

Question:

If $x:y=4:5$, then what is the value of z?

Options:

100

120

Correct Answer:

Explanation:

In this figure x : y = 4 : 5

We know that the angle made by a straight line is always 180^o

So, 4a + 5a = 180

a = 20

Now, angle x = angle z ( Vertically opposite angle)

So, x = z = 80^o