11 Sta2 Yearly Exam Questions

Oscar earns a casual rate of $26.50 per hour at work.

What is his time-and-a-half rate per hour?

• $13.25

• $19.88

• $39.75

• $53.00

Alice invested $6000 in an account that earns simple interest at the rate of 3.5% per annum. What is total interest earned in the first four years?

• $70

• $84

• $210

• $840

What is the volume of the cylinder shown above?

• 1257 cm³

• 5027 cm³

• 9381 cm³

• 20 106 cm³

A sample of 25 residents were asked to indicate the time, in hours, spent using the internet across the past weekend. The results are displayed in the graph.

What is the median number in hours?

• 4.0

• 4.5

• 5.0

• 6.0

This open crate has length 4a, width 2a and height b.

Which of the following expressions gives the volume of the crate?

• 8a²b

• 6a + b

• 12ab + 8a²

• 12ab + 16a²

Office furniture was purchased for $30 000. It depreciates by $6000 each year.

After three years its value is:

• $6000

• $12 000

• $15 360

• $24 000

If $y=2x^2$ , which of the following gives x as the subject of the equation?

•  $x=\pm\sqrt{\frac{y}{2}}$  

•  $x=\pm\frac{\sqrt{y}}{2}$  

•  $x=\pm\sqrt{2y}$  

•  $x=\pm2\sqrt{y}$  

Which one of the following graphs could represent the line with equation 2x + y = 3?

• 
• 
• 
• 

What is the percentage error (+/−) in the measurement of 0.05 litres?

• 0.005%

• 0.01%

• 1%

• 10%

The two mathematics classes in the Year 11 mathematics standard course sat for the same assessment task and the results are shown in the table.

What is the mean mark for the course?

• 41.75

• 60

• 61

• 67.25