Whats the output

Question

Running these code I cant understand the output. Could you explain it?

def count(numbers):
total=0
for x in numbers:
if x < 20:
total = total + 4
print (total)

list = [0, 1, 4, 10, 30, 40, 17]

count(list)

Answer 1

The output should be 20. The function count() basically goes through each number in the list provided. If the number is less than 20, then 4 will be added to the variable total. Once it's done, the console will output the total. The iterations look like this:
Iteration 1: 0 is less than 20, so 4 is added to total. total = 4
Iteration 2: 1 is less than 20, so 4 is added to total. total = 8
Iteration 3: 4 is less than 20, so 4 is added to total. total = 12
Iteration 4: 10 is less than 20, so 4 is added to total. total = 16
Iteration 5: 30 is greater than 20, so nothing happens.
Iteration 6: 40 is greater than 20, so nothing happens.
Iteration 7: 17 is less than 20, so 4 is added to total. total = 20

Answer 2

x = 0
0 < 20
total = total + 4 //4

x = 1
1 < 20
total = total + 4 //8

x = 4
4 < 20
total = total + 4 //12

x = 10
10 < 20
total = total + 4 //16

x = 30
30 < 20 returns false

x = 40
40 < 20 returns false

x = 17
17 < 20
total = total + 4 //20

output: 20

Answer 3

For every number in the list that is less than 20...4 is added to the total.