Natalie's side end of the house is is a normal 5 sided shape, floor to ceiling = 5.5 metres high, floor to top of roof =9m high, and 7 metres wide. She is going to paint it with white paint. The paint she will use comes in three different sized tins. The instructions on the tins say that 1 Lt will cover an area of 5m squared.
The lablel's starting from the smallest, say that-
White, Smallest, =2.5lt, costs £14.
White Medium, =5lt, costs £22.
White Largest, =10lt, costs £48.
Question- What is the minimum cost of the paint Natalie needs?

Question

Natalie's side end of the house is is a normal 5 sided shape, floor to ceiling = 5.5 metres high, floor to top of roof =9m high, and 7 metres wide. She is going to paint it with white paint.  The paint she will use comes in three different sized tins.  The instructions on the tins say that 1 Lt will cover an area of 5m squared.  
The lablel's starting from the smallest, say that-
White, Smallest, =2.5lt, costs £14.
White Medium, =5lt, costs £22.
White Largest, =10lt, costs £48.
Question- What is the minimum cost of the paint Natalie needs?