Write a program to print the following patterns: i) * * * * * * * * * * * * * ii) 1 2 1 2 3 2 1 2 3 4 3 2 1 2 3 4 5 4 3 2 1 2 3 4 5 iii) 1 2 3 4 5 1 2 3 4 1 2 3 1 2 1 iv) * * * * * * * *

Write a program to repeat the string "GOOD MORNING" $\mathrm{n}$ times. Here ' $\mathrm{n}$ ' is an integer entered by the user.

Write a program to calculate in how many days a work will be completed by three persons A, B and C together. A, B, C take $\mathrm{x}$ days, $\mathrm{y}$ days and $\mathrm{z}$ days respectively to do the job alone. The formula to calculate the number of days if they work together is $\mathrm{xyz} /(\mathrm{xy}+\mathrm{yz}+\mathrm{xz})$ days where $\mathrm{x}, \mathrm{y}$, and $\mathrm{z}$ are given as input to the program.

Presume that a ladder is put upright against a wall. Let variables length and angle store the length of the ladder and the angle that it forms with the ground as it leans against the wall. Write a Python program to compute the height reached by the ladder on the wall for the following values of length and angle:

a) 16 feet and 75 degrees

b) 20 feet and 0 degrees

c) 24 feet and 45 degrees

d) 24 feet and 80 degrees

Write a program to enter the following records in a binary file:

Number of records to be entered should be accepted from the user. Read the file to display the records in the following format:

• Item No:

• Item Name :

• Quantity:

• Price per item:

• Amount: ( to be calculated as Price * Qty)

Write a program to input your friends' names and their Phone Numbers and store them in the dictionary as the key-value pair. Perform the following operations on the dictionary:

a) Display the name and phone number of all your friends

b) Add a new key-value pair in this dictionary and display the modified dictionary

c) Delete a particular friend from the dictionary

d) Modify the phone number of an existing friend

e) Check if a friend is present in the dictionary or not

f) Display the dictionary in sorted order of names