Page 51 - 2501_KVS_C-8

Q7. Write a program in python to accept a number from the user and COUNT and
display the number of EVEN elements up to it. E.g. if the user enters N=5, then
output should be: 2 as there are 2 even nos.(2 & 4) up to it.
Ans. N=int(input("Enter a number:"))

count=0
for i in range(1,N+1):
if i%2==0:
count = count+1

print("Total No. of EVEN numbers upto ",N," are : ",count)

Let us revise what we have learnt:
Ø The ‘For’ loop is used in Python to repeat instructions for a specific number of times,
based on a defined range using the range() function.

Ø The ‘For’ loop executes a block of code for each value in the specified range, with the
loop variable updating automatically in each iteration.
Ø Practice problems provide opportunities to apply the ‘for’ loop, such as printing number

series, calculating squares, and counting even numbers up to a given limit.

Exercise

Something to know

A. Answer the following questions:

1. What is the meaning of a loop?
________________________________________________________
2. Why is a loop used in programming?
________________________________________________________

3. Which loops are used in Python?
________________________________________________________

B. Predict/Select the correct OUTPUT for each question.
1. for I in range(1, 5):
print(I)

A. 1 C. 0
2 1
3 2
4 3
5 4
B. 1 D. None
2
3
4

Python 49