Question

What is the value of x?
15
30
45
60

Answer 1

A.15
Hope that helps

Answer 2

Choice A. 15

Explanation:

Solution:

In the given figure we can see two adjacent angles on a right angle. (30° and 4x)

We know that a right angle is an angle of exactly 90° .

∴ 30 + 4x = 90

⇒4x = 90 -30

⇒x = 60/4

⇒x = 15

Verification:

30 + 4x = 90

⇒30 + 4×15 = 90

⇒30 + 60 = 90

⇒90 = 90