Answr:
Choice B is correct answer.
Step-by-step explanation:
From question statement , we observe that
Perimeter and width of the office is given.
Perimeter = 30 feet and width = 5 feet
We use the formula of perimeter to find the length of office.
P = 2l + 2w
putting the values of perimeter and width in the formula, we get
30 = 2l + 2(5)
30 =2l +10
30-10 = 2l
20 = 2l
l = 10 feet
hence, the length of office is 10 feet.
