Question 723768
Basic question is, how many square meters is the walkway path on the inside?


The still-exposed lawn area will be {{{(110-2*6)(80-2*6)}}}.
The sum of pathway around and the exposed lawn area will be {{{110*80}}}.
The area of just the pathway around the lawn is {{{highlight(110*80-(110-2*6)(80-2*6))}}} m^2.


That area is {{{110*80-(110-12)(80-12)}}}
={{{8800-(98)(68)}}}
={{{8800-6664}}}
={{{highlight(2136)}}} m^2


To find the cost of this walkway path is only now a matter of using the given ratio to compute.