The bar chart above shows the marks obtained by students in a mathematics test

Determine the mean score of the students that took the mathematics test

The bar chart above shows the marks obtained by students in a mathematics test

How many students in all took the test

Rationalise$\frac{\sqrt{6}-\sqrt{4}}{\sqrt{6}+\sqrt{4}}$

OGIVE is constructed using

In the cyclic quadrilateral above, find $\angle PRO$

Find the mean of 10, 8, 5, 11, 12, 9, 6, 3, 15, and 23 

From the cyclic quadrilateral above, find $\angle TVS$

If Q is a factor of 18 and T is a prime number between 2 and 18. What is $Q\cap T$

Solve for x and y respectively$\begin{align}  & 2x-5y=9 \\ & 6x-4y=12 \\\end{align}$

If $N=\frac{P}{2}\left( \frac{{{T}_{1}}-{{T}_{2}}}{{{T}_{1}}} \right)$ find P when N= 12, T₁ = 27 and T₂ = 24