By reading the question twice, it ensures that the information you are gathering from it is relevant to the answering of it in a logical way. When reading the question again, it would be an idea to highlight or select the information on the second reading whilst reading it slowly trying to break down the question into parts that will allow you to answer the question logically. By reading the question for the second time, you also able to understand it in another way or recognise some other aspect to what it is asking you. You will remember that sitting numeracy tests can sometimes create nerves and this can impact how you read, understand and approach the question so by reading it twice, hopefully on the second attempt you may seem a lot calmer at approaching and understanding it. With 90 seconds/question, there is generally sufficient time to implement this approach.