Volume 24


In probability theory and in everyday language we use the word 'random' and, for many of us, our first encounter with the word would have been in drawing a name at random from a hat.

We are all familiar with the co-ordinate geometry based on the real axes and ordered pairs $(x,y)$ where $x$ and $y$ may be any element of the infinite set of real numbers.

Tsunami is the (Japanese) name given to a very long wave caused by an underwater earthquake or landslide.

Q.753 When multiplying two whole numbers a student by mistake reduced the tens digit in the answer by 7.

Q.744 Define $f(x) = \sum_{k=114}^{184} \frac{k}{x-k}$