Loop Practice Questions (For & While)

Programming Practice – Loops

These questions are designed to help students practice for loop, while loop, do-while loop, and nested loops.

Basic Loop Questions

1. Print numbers from 1 to 10 using a for loop.

2. Print even numbers from 1 to 50.

3. Print the table of 5 using a for loop.

4. Print all numbers from 10 to 1 (reverse order).

5. Calculate the sum of numbers from 1 to 100 using a loop.


User Input & While Loop

6. Print the table of a number entered by the user.

7. Count how many numbers between 1 to 100 are divisible by 7.

8. Print all odd numbers from 1 to 50 using while loop.

9. Print the factorial of a number.
Example: 5! = 120

10. Print the Fibonacci series of first 10 terms.
(0, 1, 1, 2, 3, 5, 8, …)


Array Based Questions

11. Find the largest number in an array using a loop.
Example: [10, 50, 2, 9, 100]

12. Reverse an array using a loop.
Example: [1,2,3,4] → [4,3,2,1]

15. Print the sum of all elements in an array using a loop.
Example: [1,5,3,7] → 16

16. Count how many even and odd numbers are in an array.

17. Find the second largest number in an array using a loop.


Nested Loop Pattern Questions

13. Print this pattern using nested loops:

*
**
***
****
*****

14. Print this number pyramid:

1
12
123
1234
12345

20. Print this star pattern (reverse triangle):

*****
****
***
**
*

Logic Based Questions

18. Print all prime numbers between 1 to 100.

19. Check if a number is palindrome using a loop.
Example: 121 → palindrome


📌 Practice all questions without using built-in functions.

Prepared By Ankit Sir | Dev Team