Sequences
Time Series
Earth Geometry
Finance
Networks
100

In the arithmetic sequence 5, 9, 13, 17, ..., this number is the common difference.

What is 4?

100

This component describes the general upward or downward movement in data over time.

What is the trend?

100

These lines run east-west around the Earth.

What are lines of latitude?

100

This type of interest is calculated only on the original principal.

What is simple interest?

100

The points in a network are called

What are vertices?

200

Find the next term in the geometric sequence 3, 6, 12, 24, ...

What is 48?

200

Ice cream sales increase every summer and decrease every winter. This variation is called: 

What is seasonal variation?

200

These lines run from the North Pole to the South Pole.

What are lines of longitude?

200

The simple interest earned on $5000 at 6% p.a. for 2 years.

What is $600?

200

The connections between vertices are called:

What are edges?

300

The 15th term of the arithmetic sequence with first term 8 and common difference 3.

What is 50?

300

A 3-point moving average of 20, 25 and 29 is: 

What is 24.67?

300

The shortest path between two points on Earth follows this type of route.

What is a great-circle route?

300

The future value of $1000 invested at 5% compound interest for 1 year.

What is $1050?

300

A path that uses every edge exactly once is called: 

What is an Euler trail?

400

The common ratio of the sequence 640, 320, 160, 80, ...

What is 0.5?

400

A moving average is primarily used to remove this type of variation.

What is irregular (random) variation?

400

Travelling from Brisbane (153°E) to Perth (116°E) involves a longitude difference of:

What is 37°?

400

A loan repaid through equal regular repayments is known as this type of loan.

What is an annuity loan?

400

A network in which every vertex is connected to every other vertex is called:

What is a complete network?

500

The 10th term of the geometric sequence 2, 6, 18, ...

What is 39 366?

500

If a trend equation is y=3x+50y = 3x + 50y=3x+50, the predicted value when x=12x=12x=12 is: 

What is 86?

500

A plane travels the great-circle distance of 8 000 km at an average speed of 800 km/h. The flight time is:

What is 10 hours?

500

Calculate the future value of $10 000 invested for 3 years at 4% p.a. compound interest.

What is approximately $11 249?

500

A travelling salesperson wants to visit every city exactly once and return to the starting city. This type of cycle is required.

What is a Hamiltonian cycle?