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Carpentry & Joinery Phase4 Maths Job Costing Sample Questions & Solutions.

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Presentation on theme: "Carpentry & Joinery Phase4 Maths Job Costing Sample Questions & Solutions."— Presentation transcript:

1 Carpentry & Joinery Phase4 Maths Job Costing Sample Questions & Solutions

2 Carpentry & Joinery Phase4 Maths Job Costing The total cost of a job came to 3,645 Calculate the cost of each component to the nearest cent if the costs were broken down as follows: Materials 1/3 Labour 5/12 Profit margin 1/6 VAT 1/12

3 Carpentry & Joinery Phase4 Maths Job Costing ComponentFraction of Cost Materials Labour Profit margin VAT % Cost 1, % of 3645 = 1, , % of 3645 = 1, % 0f 3645 = % of 3645 = Convert fraction to % (divide top by bottom)

4 Carpentry & Joinery Phase 4 Module 3 Unit 6 Job Costing Three carpenters work for 2 weeks constructing a roof. They work 9 hours a day for 4 days and 8 hours on the fifth day each week. From the table below, calculate the net pay for the three carpenters after allowances and deductions. Standard Hourly rate 22 Standard working week 39 hours Overtime rate1 1 / 2 standard hourly rate Tool allowance (taxable) 1.55 / day Meal allowance (taxable) 1.80 / day Tax21%

5 Carpentry & Joinery Phase 4 Module 3 Unit 6 Job Costing Standard Hourly rate 22 Standard working week 39 hours Overtime rate1 1 / 2 standard hourly rate Tool allowance (taxable) 1.55 / day Meal allowance (taxable) 1.80 / day Tax21% Total hours = 4 x = – 39 = 5 hours (overtime) 22 x 39 = x 5 = 165 (hourly rate x 1.5) 1.55 x 5 (days) = x 5 (days) = 9 Total Gross = 1, % = Net wage = , Answer X 3 = 2, Answer NB* always take the time to read each question fully to be sure of what answer is required. In this example, the total for the 3 carpenters was requested.

6 Carpentry & Joinery Phase 4 Module 3 Unit 6 Job Costing It takes 3,000 meters of flooring to complete one house. How much would it cost to floor 18 houses given the following information? Cost for 1 house (2%) = ComponentCost Flooring0.25 per metre run. (Less 2% trade discount) Labour15 hours for each 25 per hour Overheads38% of labour costs V.A.T.+10% Total for 1 house1, Total for 18 houses24, Subtotal 1, x 3,000 = 750 2% = 15


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