Python Coding Challenge - Question with Answer (ID -291125)

 

Step-by-Step Explanation

1️⃣ Lists Creation

a = [1, 2, 3]
b = [10, 20, 30]

• a contains: 1, 2, 3

• b contains: 10, 20, 30

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2️⃣ zip(a, b)

zip(a, b)

This pairs elements from both lists:

(1, 10)
(2, 20)
(3, 30)

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3️⃣ Loop Execution

for i, j in zip(a, b):

• i gets values from list a

• j gets values from list b

Iteration	i	j
1st	1	10
2nd	2	20
3rd	3	30

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4️⃣ Inside Loop

i = i + 100

• This changes only the loop variable i,

• ✅ It does NOT change the original list a

Example:

• 1 → becomes 101

• 2 → becomes 102

• 3 → becomes 103

But this updated i is never printed or used further.

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5️⃣ Print Statement

print(j)

• Only j is printed

• j comes from list b

So it prints:

10
20
30

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✅ Final Output

10
20
30

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🔥 Key Learning Points

✅ Changing i does not modify list a
✅ zip() pairs values but does not link memory
✅ Only j is printed, so i + 100 has no visible effect

Mathematics with Python Solving Problems and Visualizing Concepts