CBSE IP CLASS 11 PRACTICAL FILE (TERM-1)

INFORMATICS PRACTICES (065)

CLASS - XI

PRACTICAL LIST

========================================

EXPERIMENT – 1

Objective: The marks obtained by a student in 3 different subjects are input by the user. Your program should calculate the average of subjects and display the grade. The student gets a grade as per the following rules:

Average           Grade

90-100             A

80-89              B

70-79              C

60-69              D

0-59               F

Solution:

sub1 = int(input("Enter marks obtained in subject 1: "))

sub2 = int(input("Enter marks obtained in subject 2: "))

sub3 = int(input("Enter marks obtained in subject 3: "))

avg_marks =(sub1+sub2+sub3)/3

print("Average mark:",avg_marks)

if avg_marks>=90:

    print("Grade is A")

elif avg_marks>=80:

    print("Grade is B")

elif avg_marks>=70:

    print("Grade is C")

elif avg_marks>=60:

    print("Grade is D")

else:

    print("Grade is F")

EXPERIMENT – 2

Objective: WAP in Python to find the sale price of an item with a given cost and discount (%).

Solution:

price=float(input("Enter Price : "))

dp=float(input("Enter discount % : "))

discount=price*dp/100

sp=price-discount

print("Cost Price : ",price)

print("Discount: ",discount)

print("Selling Price : ",sp)

EXPERIMENT – 3

Objective: To calculate perimeter/circumference and area of shapes such as triangle, rectangle, square and circle.

Solution:

import math

def area_square(a):

    area1=float(a*a);

    print("Area of square is:",area1)

def area_circle(r):

    area2=float(3.14*r*r);

    print("Area of circle is:",area2)

def area_rectangle(a,b):

    area3=float(a*b);

    print("Area of rectangle is:",area3)

def area_triangle(x,y):

    area4=float((x*y)/2);

    print("Area of triangle is:",area4)

def peri_square(a):

    peri1=float(4*a);

    print("Perimeter of square is:",peri1)

def peri_circle(r):

    peri2=float(2*3.14*r);

    print("Perimter of circle is:",peri2)

def peri_triangle(a,b):

    hypotenuse=float(math.sqrt(a*a+b*b))

    peri3=float(a+b+hypotenuse)

    print("Perimter of right angled triangle is:",peri3)

def peri_rectangle(a,b):

    peri4=float(2*(a+b))

    print("Perimter of rectangle is:",peri4)

side=float(input("enter the side of square:"))

area_square(side)

print()

peri_square(side)

radius=float(input("enter the radius of circle:"))

area_circle(radius)

peri_circle(radius)

length=float(input("enter the length of rectangle:"))

breadth=float(input("enter the breadth of rectangle:"))

area_rectangle(length,breadth)

peri_rectangle(length,breadth)

base=float(input("enter the base of right angled triangle:"))

height=float(input("enter the height of right angled triangle:"))

area_triangle(base,height)

peri_triangle(base,height)

EXPERIMENT - 4

Objective: To calculate Simple and Compound interest.

Solution:

principal = float(input('Enter amount: '))

time = float(input('Enter time: '))

rate = float(input('Enter rate: '))

simple_interest = (principal*time*rate)/100

compound_interest = principal * ( (1+rate/100)**time - 1)

print('Simple interest is: %f' % (simple_interest))

print('Compound interest is: %f' %(compound_interest))

EXPERIMENT - 5

Objective: Write a python program to input cost price, selling price of product from user and check whether is profit or loss and also print the Profit/loss amount

Solution:

cp=float(input("Enter the Cost Price : "));

sp=float(input("Enter the Selling Price : "));

if cp==sp:

    print("No Profit No Loss")

elif sp>cp:

    print("Profit of ",sp-cp)

else:

    print("Loss of ",cp-sp)

                                EXPERIMENT - 6

Objective: Python program to calculate monthly EMI (Equated Monthly Instalments)

Solution:

# EMI Formula = p * r * (1+r)^n/((1+r)^n-1)

# Monthly Interest Rate (r) = R/(12*100)

# p = Principal or Loan Amount

# r = Interest Rate Per Month

# n = Number of monthly instalments

p = float(input("Enter principal amount: "))

R = float(input("Enter annual interest rate: "))

n = int(input("Enter number of months: " ))

r = R/(12*100)

emi = p * r * ((1+r)**n)/((1+r)**n - 1)

print("Monthly EMI = ", emi)

EXPERIMENT – 7

Objective: To calculate tax - GST / Income Tax.

Solution:

item=input("Enter item name :")

sp_cost=float(input("How much is selling price of item:"))

gst_rate=float(input("What is GST rate % :"))

cgst=sp_cost*((gst_rate/2)/100)

sgst=cgst

amt=sp_cost+cgst+sgst

print("CGST (@",(gst_rate/2),"%) :",(cgst))

print("SGST(@",(gst_rate/2),"%) :",(sgst))

print("Amount payable: ",(amt))

EXPERIMENT – 8

Objective: To find the largest and smallest numbers in a list.

Solution:

lst = [ ]

num = int(input('How many numbers: '))

for n in range(num):

    numbers = int(input('Enter number '))

    lst.append(numbers)

print("Maximum element in the list is :", max(lst), "\nMinimum

 element in the list is :", min(lst))

EXPERIMENT – 9

Objective: To find the third largest/smallest number in a list.

Solution:

num = [2,3,7,4,5,6,10,11,120]

largest_num = num[0]

second_largest_num = num[0]

third_largest_num = num[0]

for i in num :

    if i > largest_num :

        third_largest_num = second_largest_num

        second_largest_num = largest_num

        largest_num = i

    elif i > second_largest_num :

        third_largest_num = second_largest_num

        second_largest_num = i

    elif i > third_largest_num :

        third_largest_num = i

print("Third largest number of the list is {}".format(third_largest_num))

EXPERIMENT – 10

Objective:To find the sum of squares of the first 100 natural

 numbers.

Solution:

n = int(input("Enter nth number : "))

sum = 0

for s in range(1, n+1):

   sum = sum + (s*s)

print("Sum of squares is : ", sum)

EXPERIMENT – 11

Objective:To print the first ‘n’ multiples of a given number.

Solution:

number = int(input("Enter number: "))

print("The multiples are: ")

for i in range(1,11):

    print(number*i, end =" ")

EXPERIMENT – 12

Objective: To count the number of vowels in a user entered

 string.

Solution:

string=input("Enter string:")

vowels=0

for i in string:

      if(i=='a' or i=='e' or i=='i' or i=='o' or i=='u' or i=='A' or i=='E' or i=='I' or i=='O' or i=='U'):

            vowels=vowels+1

print("Number of vowels are:")

print(vowels)

==================================