Answer: Python Puzzler #1684

The answer is C. The program prints:

6 4

Checked by running the program for real.

// divides and throws away the remainder: each friend gets 6 sweets. % gives the remainder: 4 sweets left over.

A trace table follows the program step by step. Here’s this one:

sum	answer
40 // 6	6
40 % 6	4

sweets = 40
friends = 6
print(sweets // friends, sweets % friends)

Try it: change one number in the program and predict the new output before you run it.