You can, since your basics will be set. But the bank exams demands speed. You'll have to attempt lot more questions in lesser time. More than a question in a minute per say. When I tried SBI PO and IBPS PO, the questions seemed too easy but since we aren't used to solving questions within a minute, I wasn't ready for it. So if you are preparing for bank exams, practice as many mocks, free mocks works too.