Cargill Corporate Affairs - Intern Telephonic Interview interview questions

Received phone interview asking me whether I can attend a short interview next week but I replied that I could not as I would only come back to Singapore on next Saturday and requested for another day. She said she would ask her manager about rearrangement of time. She asked me since I studied mathematics and economics, how is it related to the job scope and what makes me apply the job. I told her that the roles and responsibilities of the job attracts me and it would provides a great learning opportunities. She then asked me about what relevant modules I have taken and I told her some. She said okay that she will arrange with me for another short talk two weeks later if I am shortlisted.