Mary and John are planning on having some new carpet and furniture for their lounge and need to carry out some calculations. The diagram shows the aerial view of a lounge which is to be decorated, carpeted, and furnished (not drawn to scale).

Carpet costs £4.50 per square meter
Fitting the carpet costs £40 call out and £1.50 per hour fitting
The fitters can lay 5m2 of carpet per hour

Find the cost of fitting the carpet.