explication ?.

Question

def add(x, y):
return x + y

def do_twice(func, x, y):
return func(func(x, y), func(x, y))

a = 5
b = 10

print(do_twice(add, a, b))

Answer 1

add(add(5,10),add(5,10))
# add(5, 10) is 15
add(15 , 15)
# ouput: 30

Answer 2

The result is 30
add(add(5,10),add(5,10))