Question

Design an algorithm to accept income from the user; compute the income tax to be paid and display the income and the tax payable on the screen. 3. Income tax calculation is based on the following table. It is also available at this link: https://www.iras.gov.sg/irashome/Individuals/Locals/Working-Out-Your-Taxes/Income Tax-Rates/ (12 Marks) Chargeable Income Income Tax Rate (%) Gross Tax Payable (S) First $20,000 Next $10,000 200 First $30,000 Next $10,000 200 350 3.50 First $40,000 Next $40,000 550 2,800 First $80,000 Next $40,000 3.350 4,600 11.5 First $120,000 Next $ 40,000 7,950 6,000 15 First $160,000 Next $40,000 13,950 6,800 17 First $200.000 Next $120,000 20,750 21,600 18 42,350 First $320,000 Above $320,000 20

pls help me to write the defining algorithm,pseudo code and desk checking(2 test cases each)

Answer 1

Solution:

pseudo code

• Declare the Variables
  • income, tax, grossTax;
• Display the income
  • Please input your income
• Start ForLoop

if ( income < 20000 )

tax = 0;

else if ( income >= 20000 && income < 30000 )

tax = 0.02;

else if ( income >= 30000 && income < 40000 )

tax = 0.035;

else if ( income >= 40000 && income < 80000 )

tax = 0.07;

else if ( income >= 80000 && income < 120000 )

tax = 0.115;

else if ( income >= 120000 && income < 160000 )

tax = 0.15;

else if ( income >= 160000 && income < 200000 )

tax = 0.17;

else if ( income >= 200000 && income < 320000 )

tax = 0.18;

else if ( income >= 320000 )

tax = 0.2;

• End ForLoop
• Calculate the gross Tex
  • grossTax = income * tax;
  • Print the GrossTax
  • print the LeftAmount;

End of the Pseudo Code

Code For this problem in C++;

#include <iostream>
int main() {
    float income, tax, grossTax;
    std::cout << "Please input your income" << std::endl;
    std::cin >> income;
    if ( income < 20000 ) {
        tax = 0;
    } else if ( income >= 20000 && income < 30000 ) {
        tax = 0.02;
    } else if ( income >= 30000 && income < 40000 ) {
        tax = 0.035;
    } else if ( income >= 40000 && income < 80000 ) {
        tax = 0.07;
    } else if ( income >= 80000 && income < 120000 ) {
        tax = 0.115;
    } else if ( income >= 120000 && income < 160000 ) {
        tax = 0.15;
    } else if ( income >= 160000 && income < 200000 ) {
        tax = 0.17;
    }  else if ( income >= 200000 && income < 320000 ) {
        tax = 0.18;
    } else if ( income >= 320000 ) {
        tax = 0.2;
    }
    grossTax = income * tax;
    std::cout << "Tax to be paid : " << tax * 100 << "%.\n" << "Gross tax payble : " << grossTax << "." << std::endl;
    std::cout << "Taxpayer has left : " << income - grossTax << std::endl;
    return 0;
}