Question

Show your results using all planning tools (algorithm, IPO chart, desk checking, pseudocode, flowchart) for an application that allows a user to enter the number of text messages he or she sent last month and then displays the bill. Messages cost 25 cents each, and 8 percent tax is charged on the total.

Answer 1

The results in the form of IPO chart algorithm/pseudocode, flowchart and the desk checking is provided below:

IPO Chart with Algorithm.

Input	Processing	Output
Monthly count of text messages	Processing items:       Monthly raise Algorithm: Enter the number of text messages sent in the month. Compute the monthly bill by multiplying the count of text message by cost of each message. Add tax on the resultant computed bill. Display the newly monthly bill.	Display the monthly bill.

Explanation:

• The pseudocode and the algorithm for the application is provided above.
• First it takes the user input as number of text messages per month.
• For each message, the cost is 25 cents and after it a tax of 8% is applied on it.
• The final cost is the multiplication of the number of text messages entered by the user with 25.
• And 8% tax to the above resultant final cost.
• Display the Final monthly bill in the output screen.

IPO Chart with flowchart.

Input	Processing	Output
Monthly count of text messages	Processing items:       Monthly raise Flowchart:	Display the monthly bill.

The Desk checking of the application of computing the monthly bill is provided below:

Number of text messages in a month	Per message cost	Tax	Final Monthly Bill
100	25	0.08	2700
150	25	0.08	4050
500	25	0.08	13500