¿Why this IMC calculation doesn't work?!

Question

peso = float(input())
altura = float(input())
if (peso/altura**2)< 18.5:
print ("Underweight")
if (peso/altura**2)> 18.5 and (peso/altura**2) < 24.9:
print ("Normal")
if (peso/altura**2)> 25 and (peso/altura**2)< 29.9:
print ("Overweight")
else (peso/altura**2)> 30:
print ("Obesity")

Answer 1

Still doesn't work

Answer 2

Thanks I change the ">" for ">=" like you tell me, and I delete the final "else" and worked.