Plz solve farstly

Dear Student,

Pressure = Force / Area

Given that pressure is same. So,
F₁ / A₁ = F₂ / A₂

A₁ = F₁ × (A₂ / F₂)
= 0.4kg × (2.25 m² / 0.75 kg)
= 1.2 m²

∴ Area of book is 1.2 m²

Regards