Worked Examples
Question 1
The average monthly cost of running a particular model of car has been estimated to be $\$964.44$$964.44.
What is the yearly cost of running this car?
Assume that there are $52$52 weeks in a year, and give your answer correct to the nearest cent.
Harry owns this particular model of car and finds that the bi-weekly running costs are in fact $\$660.42$$660.42. By how much more does Harry pay in running costs compared to the estimated running costs, per year?
Assume that there are $52$52 weeks in a year, and give your answer correct to the nearest cent.
Question 2
Lisa bought a new car for $\$22000$$22000. She is told that the running cost of the car will be $291.10$291.10 cents per km. Lisa travels $14000$14000 km per year.
What is her yearly running costs in dollars? Give your answer to the nearest cent.
What is the monthly running costs for Lisa? Give your answer to the nearest cent.
Question 3
Xavier wanted to know how much of his savings were spent on his car. His yearly sources of running costs are given below.
What is his weekly running costs to the nearest cent?
Assume that there are $52$52 weeks in a year.
Cost Fuel $\$3769$$3769 CTP Insurance and Comprehensive Car Insurance $\$1393$$1393 Price of Servicing $\$348$$348 for the first service and $\$369$$369 for the second service. Cost of Tires $\$201$$201 each NRMA Gold Membership $\$150$$150 Tolls and Parking Fees $\$720$$720 Parking Fines $\$320$$320 If the depreciation on Xavier's car amounted to $\$5500$$5500 and is also considered as a running cost, calculate the new weekly running cost of the car to the nearest cent.