The sentences given below, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a number. Decide on the most logical order and enter the sequence of numbers in the space provided. Only numbers are to be entered in the space provided for the answer, and no letters, characters, or spaces should be entered. For example, a response such as 3412 is valid and responses such as 3412. or 3 41 2 are invalid.

1. In established companies, putting in extra hours is usually a way to get ahead. Elon Musk once said that no one ever changed the world on a 40-hour workweek. They are less likely to be promoted too.
2. There are also other ways to approach this question. You might argue that the optimal workweek is defined by output, not hours. You might say that this is one for policy makers.
3. How long people actually work is not the same as how long they ought to. Jobs, incomes and cultural norms vary so wildly that there is no right answer.
4. Nine to five is still alive. Sort of. A new survey of labour-force data finds that the world’s adult employed population works an average of 42 hours a week.