Suppose a lawyer can type faster than a secretary. Should the lawyer do her own typing? Can you demonstrate the validity of your answer?
The lawyer should not do her own typing even if she types faster than her secretary. If the lawyer does her own typing, it would mean that the lawyer is spending a greater percentage of her time completing tasks that involve typing, ...
This solution explains if a lawyer can type faster than a secretary, if the lawyer should do the typing. The validity of the answer is also demonstrated.