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b. In what situation does the else block execute in an if...else statement?
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c. Explain the difference between a for loop and a while loop.

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d. Write a Python program to print the numbers in reverse order from 5 to 1.

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e. Describe a nested if statement.

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21 st #Critical Thinking
5. Competency-based/Application-based questions. Century #Technology Literacy
Skills
a. Sneha is writing a program to categorise ages into different stages of life: Child, Teen, Adult and
Senior. Which control structure should Sneha use to classify the ages into these stages?

b. Amit is using a for loop to print the first 6 even numbers. Which range should he use to print them?

21 st
LAB ACTIVITY Century #Critical Thinking
Skills #Technology Literacy

Check if a number is divisible by both 3 and 5. Print “Divisible by both 3 and 5” if true; otherwise, print
“Not divisible by both.”

Ask the user to enter a number and calculate its factorial using a loop.
Ask the user to enter the radius of a circle in centimetres, then calculate and display its area and
circumference.
Take the lengths of the three sides of a triangle in centimetres from the user and display whether the
triangle is scalene, isosceles or equilateral.
Ask the user to enter two numbers and check if the first number is divisible by the second.

124 Computer Science (V5.0)-VII