Our passionate mathematicians from Math-ly News have decided to put together a little something for you to enjoy over these holidays! Please find out from these two articles published in the most recent Maths newsletter why you got or why you didn’t get your Christmas presents on time.

How can Santa visit all the children in the world in one midnight?

Written by Stefan O. (8 Delta)

A lot of people thought about this question, but nobody seemed to have a clear idea of how Santa manages to do this. In my opinion, Santa uses math to achieve delivering Presents. 

You now ask yourself how? Well the answer is pretty simple. We know that the surface area of the Earth is approximately 510 million square km and Santa travels for about 9-12 hours to almost 4 Billion people. This means that Santa and his reindeers need to travel at approximately 6000000 square kilometers per hour.

Another aspect that Santa considers is the time. With so many different hours around the globe he needs to prioritize. In order to do this, he should start at exactly at 12 am and start with the countries that have the hour most near to morning.

To sum up, Santa uses a lot of math to do this job every year.


How fast does Santa’s sleigh need to fly in order to deliver gifts to all children of this world?

Written by Maya and Tania (6 Delta)

As you all know, Santa Claus delivers gifts to children all over the world in just one night! We’re sure that most of you are wondering how he manages to do this. Well we can easily find out, using the power of Math’s.

We know for a fact that there are about 1.6 billion households in the world and since our planet has about 65 million square kilometers of habitable land, the distance between any two houses should be more or less 0.225 km. Santa is responsible for delivering presents to about 500 million households, since the rest of the people don’t believe in him.

Santa has around 42 hours to deliver presents due to different time zones around the world and because the night is longer in winter. During this time he has to travel a distance of about 0.33 km from each house, place the gifts under the Christmas tree, eat any snacks left for him and travel to the next house.

This means that Santa must spend 300 microseconds (0.003) per house. It sounds impossible for any ordinary person, but we are sure that Santa gets a little bit of help from Christmas magic!