Final answer:
Marie spent 1/6 of an hour on her homework, which is half the time it took José.
Step-by-step explanation:
It took José 1/3 of an hour to complete his homework, and Marie did hers in half the time. To find out how long Marie spent on her homework, you would take José's time and divide it by 2, since half the time is the same as multiplying by 1/2.
So we calculate Marie's time spent on homework as follows:
(1/3) hour × (1/2) = 1/6 hour.
Therefore, Marie spent 1/6 of an hour on her homework, which equates to 10 minutes.