Question 632697
P = a + b + c = 25

a = 2b

b = c/2

c = 2b = a

a = c

a = 10, c = 10, b = 5

Reading the problem another way:

a = 2b = c/2

b = b

a = 2b

c = 4b

7b = 25

b = 25/7 = 3.57143