Question

if a force of 20 newton is applied over an area of 20 CM^2 then calculate the pressure

Answer 1

Thank you for asking this question.  A really easy but an interesting question to ask. 
So the formula for pressure exerted at a point is Pressure = force / area. SO if there is a 20 N force and the area is of 20 cm^2. Then the total pressure exerted overall must be 20 / 20 = 1 at that specific point or object.
I hope this answer can help you in some manner.