Answer:
The length of the share of each part is between 5 and 6 inches.
Explanation:
In order to find how long is the share of each friend we need to take the total length of the sandwich and divide it by the amount of people that will eat it. In this case the sandwich is 16 inches and it'll be divided by 3 friends. So we have:
share = length of sandwich / number of friends = 16/3 = 5.34 inches
The length of the share of each part is between 5 and 6 inches.