Which will exert more pressure 100 kg mass on 10 m2 or 50 kg mass on 4 m2? Give reason

P1 = F1/A1 = 100 x10/10 = 100 Pa
P2 = F2/A2 = 50 x 10/4 = 125 Pa
50 kg mass on 4 m2 exerts more pressure.