upper and lower bounds

so i can only get 3/5 marks on this question so can someone please show me which lines of working out i might be missing
question:
a rectangular floor tile is shown :
height = 1.6m
width = 2.3m
its dimensions are given to the nearest 0.1 meters
the tile is only able to sustain a maximum pressure of 200 newtons per square meter (N/M^2) correct to he nearest 5 (N/M^2)
given that pressure = force /area
work out the MAXIMUM force , in newtons , that can SAFELY be applied to the tile
MY WORKING OUT SO FAR:
area
1.65 × 2.35 = 3.88
1.55 × 2.25 = 3.49
pressure
upper bound = 202.5
lower bound = 197.5

The maximum force that can be applied safely is the minimum breaking force.
So what does that mean in terms of pressure and area?

is it minimum pressure and maximum area or vice versa coz ive already tried that

What is the formula for force = ....
How do you get the minimum value?

Force = pressure x area
and u get the minimum by multiplying the smallest values together but that wont work on mathswatch for some reason

What is your full working.

m


my full workings the bit i typed at the top underneath the question

No answer.