This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
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Here are the solutions to questions 4, 5, and 6: 4. (a) In a school, the monthly income of three workers Aku, Brako and Dagadu are GH¢ 5,000.00, GH¢ 6,500.00 and GH¢ 4,200.00 respectively. (i) Calculate the yearly income of each worker. Step 1: Multiply each worker's monthly income by 12 to find their yearly income. Aku's yearly income: GH¢ 5,000.00 × 12 = GH¢ 60,000.00 Brako's yearly income: GH¢ 6,500.00 × 12 = GH¢ 78,000.00 Dagadu's yearly income: GH¢ 4,200.00 × 12 = GH¢ 50,400.00 (ii) Find the yearly income difference between Aku and Dagadu. Step 1: Use the yearly incomes calculated in part (i). Aku's yearly income = GH¢ 60,000.00. Dagadu's yearly income = GH¢ 50,400.00. Step 2: Calculate the difference. Difference = GH¢ 60,000.00 - GH¢ 50,400.00 = GH¢ 9,600.00 (iii) Find the total yearly income of all three workers. Step 1: Sum the yearly incomes of Aku, Brako, and Dagadu. Total yearly income = GH¢ 60,000.00 + GH¢ 78,000.00 + GH¢ 50,400.00 = GH¢ 188,400.00 4. (b) A