Maths Quest a Year 11 for Queensland Chapter 3 Spending Money Worksheet 3.2 1

Maths Quest A Year 11 for Queensland Chapter 3 Spending money WorkSHEET 3.2 1

WorkSHEET 3.2 Spending money Name: ______

1 Chris received his telephone bill for the quarter, which showed a total charge of $187.15. The service and equipment charge was $42.45. (a) What percentage of the total bill does the service and equipment charge represent? (b) Find the cost of 156 local calls at the rate of $0.25 each.

Questions 2 and 3 refer to the following:

Eastern Energy supplies electricity for domestic use at the following rates:

Usage Rate First 1020 kWh $0.1203 Over 1020 $0.1268

2 Calculate the charge if the following meter readings were taken: Current reading 32423 Previous reading 30115

3 In a period of 91 days a family used 2430 kWh of electricity. What is the cost per day of this usage?

4 Calculate the minimum payment due for a credit card with a closing balance of $1543 where the card limit is $4000.

5 Interest is charged on a cash advance, made via a credit card, from the date the cash advance was made until it is repaid. Calculate the interest payable on a cash advance of $1500 made using a credit card with an interest rate of 12% pa. and paid off after 21 days. Maths Quest A Year 11 for Queensland Chapter 3 Spending money WorkSHEET 3.2 2

6 For a “55 days interest-free period” credit card, calculate the interest charged on an outstanding balance of $1400 which was paid 5 days after the due date. Assume that all purchases were made on the first day of the 30-day period covered by the statement and that the interest rate is 12%.

7 What is the day and date of the day which is 55 days after Tuesday 17 May?

Questions 8 – 10 refer to the following exchange rates for the Australian dollar.

Buy Sell US$ 0.521 0.515

£Stg 0.355 0.349

8 Greta exchanges $500 Australian dollars into US currency. What amount will she have?

9 On returning from a holiday Sam changes $110 US into Australian dollars. What amount will he have?

10 Convert 100 English pounds Sterling to Australian dollars and then to US dollars. What is the effective conversion rate of pounds to US dollars?