Samsung SDI Production Engineer interview questions

Went for open interview and then got called for second interview on site. During open interview, basic questions like tell me about yourself, why applying, and past work experience. On second interview, if you have lesa than 2 years of work exp, you will need to answer a booklet of statistics and maths questions which is pretty difficult. Since i was a fresh grad, the questions during the second interview is also more about yourself.