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Chapter 1: Problem 29

The variable sum starts with the value 0 . Add 10 to sum. Add 15 to sum. Add 20 to sum. Display the value of sum on the screen.

Short Answer

Expert verified
Answer: The final value of the variable "sum" is 45.

Step by step solution

01

Initialize the variable sum to 0

Start by assigning the value of 0 to the variable sum: sum = 0.
02

Add 10 to sum

Now, add 10 to the current value of sum: sum = sum + 10. After this step, the value of sum will be 10.
03

Add 15 to sum

Next, add 15 to the current value of sum: sum = sum + 15. After this step, the value of sum will be 25 (10+15).
04

Add 20 to sum

Now, add 20 to the current value of sum: sum = sum + 20. After this step, the value of sum will be 45 (10+15+20).
05

Display the value of sum

Finally, display the result (the value of sum) on the screen: print(sum). The output will show the value of 45.

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