The cost of renovating a 6 m square room is N540. What is the cost of renovating a 9 m square room?
Correct Answer: Option D
Cost of removing a 6m(^2) room = N540
Cost of renovating a 1m(^2) room = 540 / 6
Cost of removing a 9m(^2) room
= (540 / 6) * 9