CAT 2018 Time, Speed and Distance — Previous Year Question

A girl travels along a straight line, from point A to B at a constant speed, $V_1$ meters/sec for $T$ seconds. Next, she travels from point B to C along a straight line, at a constant speed of $V_2$ meters/sec for another $T$ seconds. BC makes an angle $105^\circ$ with AB. If CA makes an angle $30^\circ$ with BC, how much time will she take to travel back from point C to A at a constant speed of $V_2$ meters/sec, if she travels along a straight line from C to A?