There is a hot air balloon that is 115 meters (m) high. How many minutes does it take to pass through the stratosphere of 1.625 kilometers (km) if it ascends 400 meters (m) in 1 minute?
1.625 1000 [OP_MUL] 115  [OP_SUB] 400 [OP_DIV]
var_a = 1.625
var_b = 1000
var_c = var_a * var_b
var_d = 115
var_e = var_c - var_d
var_f = 400
var_g = var_e / var_f
print('{:.2f}'.format(round(var_g+1e-10,2)))