It is said that the train traveled 4.5 kilometers (km) in 15 minutes. How many kilometers (km) did this train travel in 5 minutes?
4.5 15 [OP_DIV] 5 [OP_MUL]
var_a = 4.5
var_b = 15
var_c = var_a / var_b
var_d = 5
var_e = var_c * var_d
print('{:.2f}'.format(round(var_e+1e-10,2)))