Answer:
Betty can complete the order in 10 days.
Explanation:
Betty has an order for 160 bows.
If the number of days are not specified to her for completing the order, then she can make the bows as per her feasibility. For instance, she can 5-6 bows a day or more depending on her will.
But if she can make 16 bows per day, we can make a reasonable conclusion that she can complete the order in 10 days.
160 / 16 = 10