COL100 Assignment 2 -Solved

1 Basic Calculator
Write a python program to perform the following binary operations on two integers a and b: 
• Addition 
• Subtraction 
• Multiplication 
• Division 
• Modulus 
Your program should prompt the user to enter the two numbers, namely a and b (You can assume that 
b = 0 
̸ ).Note: a, b are not necessarily integers and can take any real value. 
Example 1: 
INPUT: 
1 2 
2 4 
OUTPUT: 
1 6 
2 -2 
3 8 
4 0.5 
5 2 
EXPLANATION: 
Here in this example we are provided with two numbers, a = 2 and b = 4. So, there addition will be 
a + b = 6, their subtraction will be a − b = −2, their multiplication will be a ∗ b = 8, their division will 
be a/b = 0.5 and their modulus will be a%b = 2. 
Example 2: 
INPUT: 
1 1 
2 2 
OUTPUT: 
1 3 
2 -1 
3 2 
4 0.5 
5 1 
2 Print Area
Write a single program to compute the area of the following: 
• Circle: Input the radius and print the area. 
• Square: Input the length of a side and print the area. 
• Rectangle: Input the length and breadth and print the area. 
• Parallelogram: Input the base and height, and print the area. 
• Trapezium: Input the length of the parallel sides, and the perpendicular distance between them 
and print the area. 
Your program should prompt the user to enter 9 numbers. First will be the radius of circle, second will 
be length of a side in square, third will be length of rectangle, fourth will be breadth of rectangle, fifth 
will be base of parallelogram, sixth will be height of parallelogram, seventh and eighth will be length 
of parallel sides of trapezium and ninth will be perpendicular distance between the parallel sides of 
trapezium. Note: Take value of π as 3.14. 
Note: All the above numerical quantities can take any real value. 
Example 1: 
INPUT: 
21 4 
2 10 
3 3 
4 9 
5 2 
6 8 
7 5 
8 9 
9 7 
OUTPUT: 
1 50.24 
2 100 
3 27 
4 16 
5 49.0 
EXPLANATION: 
Following are the calculations involved in above example: 
π · r2 = 3.14 · 4 · 4 = 50.24 
a2 = 102 = 100 
a · b = 3 · 9 = 27 
a · h = 2 · 8 = 16 
h · (a + b)/2 = 7 · (5 + 9)/2 = 49.0 
Example 2: 
INPUT: 
1 5 
2 5 
3 4 
4 6 
5 3 
6 4 
7 11 
8 10 
9 5 
OUTPUT: 
1 78.5 
2 25 
3 24 
4 12 
5 52.5 
3 What’s my SGPA for this semester
Write a python program to compute SGPA for a given semester. Recall that if you took n courses in 
a semester with credits c1, c2 . . . cn and you got g1, g2 . . . gn grades in these courses respectively, your 
SGPA is calculated as the weighted mean of these grades i.e. 
SGP A = 
P n
i=1 ci · gi 
P n
i=1 ci 
(1) 
However, for this problem, we will assume that you took n = 5 courses in a semester. The program 
should accept as input, credits and grades obtained for each of these 5 courses and then output the 
final SGPA for the semester. For each of the 5 courses, we provide the credits and grade obtained in 
that course, each in a new line. 
3Note: It is guaranteed that credits and grades obtained are both integers. 
Example 1: 
INPUT: 
1 4 
2 10 
3 3 
4 9 
5 2 
6 8 
7 5 
8 9 
9 2 
10 10 
OUTPUT: 
1 9.25 
EXPLANATION: 
Following are the credits and grades obtained in 5 courses: 
c1 = 4, g1 = 10 
c2 = 3, g2 = 9 
c3 = 2, g3 = 8 
c4 = 5, g4 = 9 
c5 = 2, g5 = 10 
So, the final SGPA obtained is 9.25. 
Example 2: 
INPUT: 
1 5 
2 0 
3 4 
4 0 
5 3 
6 0 
7 2 
8 0 
9 1 
10 10 
OUTPUT: 
1 0.66 
EXPLANATION: 
c1 = 5, g1 = 0 
c2 = 4, g2 = 0 
c3 = 3, g3 = 0 
c4 = 2, g4 = 0 
c5 = 1, g5 = 10 
SGPA obtained is 0.66. 
4