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