Main thing in written assessment tests is answer what YOU think is the best and most honest solution to each question -NOT what you think they want to hear. Even if the 'correct' answer is obvious. Sometimes it's not. Often these tests are written to judge consistently, independent thinking, and your honesty. A test writer will often add multiple questions through out the assessment, asking for the same or related answer/solution in different ways - some obvious, others not so obvious at all. If you give inconsistent answers- based on what they 'obviously' want you to say the first time, but your best solution the second time, you might not do well. Because you will answer more subtle questions your way - leading to an inconsistent score at the end.
Just answer the whole thing using your best judgement and personal experience. You won't go wrong.