Yr 11 General Maths Unit 1 Revision

$15 000 is borrowed at an interest rate of 7% per annum, compounded annually. Determine, to the nearest dollar,

the amount of money owned after 5 years.

• $6038

• $19662

• $19661

• $21038

$12 000 is borrowed at an interest rate of 8% per annum, compounded annually. Determine, to the nearest dollar,

the amount of interest owned after 3 years.

• $3116

• $3177

• $15116

• $15117

A real estate agent is paid an annual salary of $12 000 and a commission of 2.15% of the total value of all sales the agent completed. Last year the agent sold $10 800 000 worth of properties in total. Calculate the agent’s average weekly income if he works 48 weeks in a year. Answer to the nearest dollar.

• $5875

• $5423

• $4346

• $4329

Solve the following linear equations to determine x and y.

6x + 5y =  39

y
= 4x

• x = 6, y = 1.5

• x = 1.5, y = 6

• x = 2, y = 8

• x = 3, y = 6

Determine the straight line equation which passes through the points (-2, 6) and (6,
-2)

• y = 4x + 2

• y = -x - 4

• y = -x + 4

• y = 2x - 4

(CF) Joshua just invested his money in an ice-cream truck. He estimates his costs will be $18 500 plus $1.25 per ice-cream. Determine how much he should sell each ice-cream to make a $4 000 profit for 5 000 ice-creams sold. Answer to the nearest cent.

• $5.75

• $6.20

• $1.25

• $4.50

The table below shows the exchange rates for Australian Dollar (AUD) to British Pounds (GBP) on 19 August 2018.

9am: 1 AUD = 0.57410 GBP

10am: 1 AUD = 0.57400 GBP

11am: 1 AUD = 0.57409 GBP

12pm: 1 AUD = 0.57397 GBP

Which time would be best to exchange money and why*?

(*in notebook)

• 9am

• 10am

• 11am

• 12pm

The new discounted price of an item after a 25% discount is $150. Determine its original price.

• $180

• $140

• $200

• $120

Olivia purchases 500 shares at a price of $2.40 each. After 2 years, she sells the shares for $3.00 each. Calculate the percenatge gain over 2 years.

• 25%

• 20%

• 30%

• 35%

A rectangular tank with the square base of 2 by 2 metres and height of 10 metres is filled with water. Initially the

tank has 0.5 cubic metres of water. The water flows in at a rate of 5 cubic metre per hour. How many hours will it take for the tank to be filled?

• 7.9 hrs

• 7.5 hrs

• 8.4 hrs

• 8 hrs