Financial Maths
What is the formula for interest?
I=PRT
What is the middle value in an ordered data set called?
Median
The formula for the area of a triangle is ½ × base × ____?
height
In a network, what do the vertices represent?
Points or locations
What is the price of a t-shirt if it originally cost $93 and has been discounted by 6%?
$87.42
What is included in a 5-number summary?
min, Q1, median, Q3, max
What is the volume of a cube with 3cm width?
27cm^3
How can you tell if a graph is planar?
No overlapping edges
Find the simple interest on $500 at 10% per year for 2 years.
$100
What type of graph is best used to display categorical data?
Bar graph
Convert 2.5 km into metres
2,500 m
A planar network has 5 vertices and 6 edges. How many faces does it have?
3
If you borrow $2000 at 5% compound interest for 2 years, what is the amount owed?
$2205
Find the mean of the numbers: 4, 6, 8, 10, 12.
8
The circumference of a circle is given by the formula C = 2πr. What is the radius of a circle with a circumference of 31.4 cm?
5 cm
What is the degree of J?
3
A car is bought for $40,000 and depreciates at 15% per year. What is its value after 2 years?
$28,900
A class of 20 students has a mean test score of 70. If one new student joins with a score of 90, what is the new mean?
71
A cylindrical water tank has a radius of 2 m and a height of 3 m. What is its capacity in litres? (1 m³ = 1000 L)
37,700 L (≈ 37.7 m³ × 1000)
What is the shortest path from a to f?
A-C-E-F
14