# The Joy of Computing using Python | Week 4

**Session Jan-Apr 2023**

**Course Name: The Joy of Computing using Python**

**Course Link: Click Here**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q1. Which of the following statements are true with regards to magic square?**

a. The sum of each row should be m.

b. The sum of each column should be m.

c. The sum of each diagonal should be m.

d. None of the above.

**Answer: a, b, c**

**Q2. Which of the following statements hold true about N in the magic square? N denotes the number of rows and columns in the square.**

a. N should be even.

b. N should be odd.

c. N can be even or odd.

d. N can take any value.

**Answer: c. N can be even or odd.**

**Q3. Which of the following statements are true regarding the Magic Squares? (N = Number of rows or columns)**

a. A Magic Square is always a square matrix.

b. A Magic Square can or cannot be a square matrix.

c. The Sum of each row and each column is N(N+1)/2

d. The Sum of each row and each column is N(N2+1 )/2.

**Answer: a, b**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q4. What will be the output of the following code?**

a. This is a sentence.

b. Error

c. No output

d. The program will not run.

**Answer: c. No output**

**Q5. Which of the following operator is used to raise the exponent to a number?**

a. ^

b. *

c. **

d. ***

**Answer: a. ^**

**Q6. Suppose there is a movie with 3 letters, how many combinations of names are possible?**

a. 26

b. 676

c. 17576

d. 456976

**Answer: c. 17576**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q7. What should be the value of a, b, c, d respectively?**

a. 1,3,9,7

b. 9,3,7,1

c. 1,7,3,9

d. 7,3,9,1

**Answer: c. 1,7,3,9**

**Q8. What will be the output of the following code?**

a. Print unique movies of list L1

b. Print unique movies of list L2

c. Print unique movies of list L1 and L2

d. Shows an error

**Answer: a. Print unique movies of list L1**

**Q9. What will be the output of the following code?**

a. Print all perfect squares with square roots between 5-20 and divisible by 5.

b. Print all perfect squares with square roots between 5-20 and not divisible by 5.

c. Print all perfect squares with square roots between 5-19 and not divisible by 5.

d. Print all perfect squares with square roots between 5-19 and divisible by 5.

**Answer: d. Print all perfect squares with square roots between 5-19 and divisible by 5.**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q10. A perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For example, 6 is a perfect number as the sum of its divisors 1,2,3 is equal to 6.Which function will return True if the number is a perfect number?**

a.

b.

c.

d.

**Answer: a**

**The Joy of Computing using Python Programming Assignmnet**

**Question 1**

**\Write a program that takes a number `n` as input and prints the sum of the squares of the first `n` positive integers.Example:If n = 4, the program should output 30 (1^2 + 2^2 + 3^2 + 4^2 = 30)**

**Solution:**

```
def sum_of_squares(n):
sum = 0
for i in range(1, n+1):
sum += i**2
return sum
n = int(input())
print(sum_of_squares(n))
```

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Question 2**

**Write a program that takes a number `n` as input and prints the nth power of 2.Example:If n = 4, the program should output 16 (2^4 = 16)**

**Solution:**

```
def power_of_two(n):
return 2**n
n = int(input())
print(power_of_two(n))
```

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Question 3**

**Write a program that takes a number `n` as input and prints a pyramid of numbers with `n` rows.Example:If n = 5, the program should output the following**

```
1
232
34543
4567654
567898765
```

**Solution:**

```
def pyramid(n):
for i in range(1, n+1):
spaces = " " * (n - i)
numbers = ""
for j in range(i, 2 * i):
numbers += str(j % 10)
for k in range(2 * i - 2, i - 1, -1):
numbers += str(k % 10)
print(spaces + numbers)
n = int(input())
pyramid(n)
```

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

More Weeks of The Joy of Computing using Python: Click Here

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**Session JUL-DEC 2022**

**Course name: The Joy of Computing Using Python**

Link to Enroll: Click here

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q1. Which of the following statements are true regarding the Magic Squares? (N = Number of rows or columns)**

a. A Magic Square is always a square matrix.

b. A Magic Square can or cannot be a square matrix.

c. The Sum of each row and each column is N(N+1)/2

d. The Sum of each row and each column is N(N^{2} +1)/2.

**Answer: a, d**

**Q2. What will be the output of the following code?**

a. This is a sentence.

b. Error

c. No output

d. The program will not run

**Answer: c**

**Q3. A perfect number is a number in which the sum of its proper divisors is equal to that number. For example, 6 is a perfect number as the sum of its divisors 1,2,3 is equal to 6. Which function returns True if the number is perfect?**

**Answer: a**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q4. Suppose there is a movie with 3 letters, how many combinations of names are possible?**

a. 26

b. 676

c. 17576

d. 456976

**Answer: c**

**Q5. What are the possible outputs of the following program?**

a. Any number in the range between 0,4 (Both inclusive).

b. Any number in the range between 1,4 (Both inclusive).

c. Any number in the range between 0,5 (Both inclusive).

d. Any number in the range between 1,5 (Both inclusive).

**Answer: a**

**Q6. Birthday Paradox can be simulated with approximately _______ people.**

a. 365

b. 100

c. 40

d. 20

**Answer: d**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q7. What is the command to print the last result of the ipython console?**

a. ‘’

b. –

c. _

d. \\

**Answer: c**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q8. What will be the output of the following program?**

a. Passenger, Starwars

b. spiderman, jumanji

c. spiderman, jumanji, Passenger, Starwars?

d. spiderman, Starwars

**Answer: b**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q9. In the ‘Dobble Game’, if there are 8 objects on 1 card and 10 objects on another, how many comparisons are possible?**

a. 8

b. 10

c. 18

d. 80

**Answer: d**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

**Q10. What will be the output of the following code?**

a. Display the number of consonants and name of the movie.

b. Display the number of letters and name of the movie.

c. Display the number of vowels and name of the movie.

d. Display the number of special characters and name of the movie.

**Answer: c**

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

## Python Assignment 4 Programming Solutions

**Question 1Take two numbers N and K as an input. Create a list L of length N and initialize it with zeros. Change the value to 1 of even indexes if k is even, otherwise change the value of odd indexes. Print list L in the end.(Consider 0 as even)Input:NKOutput:A list LExample-Input:52Output:[1, 0, 1, 0, 1]**

**Solution:**

`//Code`

**This is an assignment for The Joy of Computing using Python Week 4 Assignment**

**Question 2Write a program to take string S as an input and replace all vowels by *. Also print the modified string.InputA string SOutputModified string**

**Solution:**

`//Code`

**This is an assignment for The Joy of Computing using Python Week 4 Assignment**

**Question 3Write a program to take an integer N as an input and display the pattern**

**Solution:**

`//Code`

**These are answers of The Joy of Computing using Python Assignment 4 Answers**

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