Question 269992
Let x & y be 2 adjacent sides of the smaller
p=2x+2y
.
for the larger the sides are 1.5x and 1.5y
P=3x+3y
3x+3y=24
x+y=8 
.
3x+3y
2x+2y
------subtract
x+y the difference in perimeters
.
24-8=16 perimeter of the smaller.
.
Ed