Python Coding Challenge - Question with Answer (01101125)

 

Explanation:

 Creating a list of pairs

pairs = [(1,2),(3,4),(5,6)]

pairs is a list containing three tuples.

Each tuple has two numbers: (x, y).

Initializing sum

s = 0

A variable s is created to store the running total.

Starts at 0.

 Loop starts

for x, y in pairs:

The loop iterates over each tuple in pairs.

On each iteration:

x receives the first value.

y receives the second value.

Iterations:

(1, 2)

(3, 4)

(5, 6)

Modify x inside loop

x += y

Adds y to x.

This does not change the original tuple (tuples are immutable).

This only changes the local variable x.

Step-by-step:

x = 1 + 2 = 3

x = 3 + 4 = 7

x = 5 + 6 = 11

Add new x to sum

s += x

Adds the updated value of x into s.

Running total:

s = 0 + 3 = 3

s = 3 + 7 = 10

s = 10 + 11 = 21

Line 6 — Final output

print(s)

Displays the total sum.

Final Output:

21

AUTOMATING EXCEL WITH PYTHON