In [1]:

```
# Program to find the biggest of two numbers
# Variable declaration
a = 5
b = 8
print "Enter two numbers : %d" % a,b
# Calculation
big = a
if (b>big):
big = b
print "Biggest number is ",big
```

In [2]:

```
# Program to find biggest of three numbers
# Variable declaration
a = 5
b = 13
c = 8
print "Enter three numbers : %d" % a,b,c
# Calculate
big = a
if (b>big):
big = b
if (c>big):
big = c
print "Biggest number is",big
```

In [3]:

```
# Program to find biggest of three numbers
# Variable declaration
a = 18
b = -5
c = 13
print "Enter three numbers : %d" % a,b,c
# Calculation to find biggest number
if (a>b):
if(a>c):
big = a
else:
big = c
else:
if(b>c):
big = b
else:
big = c
print "Biggest number is",big
```

In [4]:

```
# Program to find the value of y
# Variable declration
x = 0.42
n = 5
print "Enter value to x and n :" , x,n
# Calculation
if (n==1):
y = 1 + x
elif (n==2):
y = 1 + x / n
elif (n==3):
y = 1 + (x ** n)
else:
y = 1 + n * x
print "Value of y(x,n) = %0.2f" % y
```

In [5]:

```
# Program to find the value of y
# Variable declaration
x = 0.42
n = 5
print "Enter value to x and n :", x,n
# Calculation
# Switch case statements
if n == 1: # case 1
y = 1 + x
elif n == 2: # case 2
y = 1 + x / n
elif n == 3: # case 3
y = 1 + (x ** n)
else: # default
y = 1 + n * x
print "Value of y(x,n) = %0.2f" % y
```

In [6]:

```
# Program to caculate the commission for sales representatives
# Variable declaration
sales = 4500
print "Sales amount ? :" , sales
# Calculation of commission
if (sales <= 500):
comm = 0.05 * sales
elif (sales <= 2000):
comm = 35 + 0.10 * (sales - 500)
elif (sales <= 5000):
comm = 185 + 0.12 * (sales - 2000)
else:
comm = 0.125 * sales
print "Commission Amount Rs.%0.2f" % comm
```

In [7]:

```
# Program to find roots of a quadratic equation
# Variable declaration
a = 1
b = 3
c = 2
print "Enter coefficients a, b, and c :", a,b,c
d = b * b - 4 * a * c
# Calculation of roots
if (d > 0):
x1 = (-b + (d ** 0.5)) / (2 * a)
x2 = (-b - (d ** 0.5)) / (2 * a)
print "Roots are real and unequal "
print x1,x2
elif(d == 0):
x = -b / (2 * a)
print "Roots are real and equal"
print "%6.2f" % x
else:
print "No Real roots, roots are complex"
```

In [8]:

```
# Program to print grade
# Variable declaration
avg_marks = 84
print "Average marks ?",avg_marks
# Calculation of grade
if (avg_marks >= 80) and (avg_marks <= 100):
print "Honours"
elif (avg_marks >= 60) and (avg_marks <=79):
print "First Division"
elif (avg_marks >= 50) and (avg_marks <= 59):
print "Second Division"
else:
print "Fail"
```

In [10]:

```
# Program to calculate electirc charges for domestic consumers
# Variable declaration
units = 348
print "Enter consumed units :",units
# Calculation of electric charges
if (units <= 200):
amt = 0.5 * units
elif (units <= 400):
amt = 100 + 0.65 * (units - 200)
elif (units <= 600):
amt = 230 + 0.8 * (units - 400)
else:
amt = 425 + 1.25 * (units - 600)
print
print "Amount to be paid Rs.%0.2f" % amt
```

In [11]:

```
# Program to find the grade of steel samples
# Variable declaration
ts = 800
rh = 180
cc = 3
print "Enter tensile strength :",ts
print "Enter rockwell hardness :",rh
print "Enter carbon content :",cc
# Calculation of grade
if (ts >= 700):
if (rh >= 200):
if (cc <= 6):
print "Grade is A"
else:
print "Grade is B"
elif (cc <= 6):
print "Grade is C"
else:
print "Grade is E"
elif (rh >= 200):
if (cc <= 6):
print "Grade is D"
else:
print "Grade is E"
elif (cc <= 6):
print "Grade is E"
else:
print "Grade is F"
```