Question 972439
Let l be the length,w be the width.
w - l = 6 (given)-------------(1)
perimeter = 30
=> 2(l+w) = 30 => l + w = 30/2 =15------(2)
Solving (1) & (2)
w-l=6
w+l=15
=> 2w =21 =>w=21/2=10.5m
l= 4.5m