Advanced Rotorcraft Technology Quantitative Researcher interview questions

I was found by some recruitment agency and they offer me to try myself in this company. I agreed and then was contacted by a girl from World Quant. She gave me a link to the test and I took it. This test is quite difficult, but I think I just was not properly prepared for it. The next day this girl called me and invited to the next round of the selection procedure. I am still in process...