Question

Mark (✓) against the correct answer
In the given figure, it is given that AOB is a straight line and 4x = 5y.
What is the value of x?



(a) 100
(b) 105
(c) 110
(d) 115

Answer 1

$$\begin{gathered} \left(a\right)100 \\ \begin{array}{l}x+y=180(\mathrm{linear}\mathrm{pair})\\ \text{=>}x+\frac{4}{5}x=180°\\ \text{=>9}x=5\times 180\\ \text{=>}x=100\\ \end{array} \end{gathered}$$