from math import log, pi

M = 67
rho = 1.038
c = 3.7
K = 5.4e-3
Ty = 70
Tw = 100
To = 20

t = (M**(2/3)*c*rho**(1/3))/(K*pi**2*(4*pi/3)**(2/3)) \
        * log(0.76*(To-Tw)/(Ty-Tw))

print(t/60)

#or, for slightly more sophisticated output:
minutes = int(t/60)
seconds = int(t%60) #% is the modulo ("rest") operator
print(f"The egg is ready after {minutes} minutes and {seconds} seconds")


"""
Terminal> /usr/bin/python3 /Users/sundnes/Desktop/IN1900_31aug/egg.py
5.25363106309877
The egg is ready after 5 minutes and 15 seconds

"""