Dr. Sanjeev Verma and R.K. Tyagi Solutions for Chapter: Understanding Shapes, Exercise 5: VALUE-BASED QUESTIONS

Suman has drawn figure $\left(\mathrm{i}\right)$ and Sneha has drawn figure $\left(\mathrm{ii}\right)$ as shown below. Both of them have marked line $l$ as the transversal. Who is wrong and why $?$

In the adjoining figure, $BOD$ is a straight line and $\angle AOB=x$. If $\angle COD$ is $3$ times of $\angle AOB$ and $\angle AOD$ is $4$ times of $\angle AOB$, then find $\angle BOC$.