Maths e magazine senior section

Mathematics Life is a math equation. In order to gain the most, you have to know how to convert negatives into positives

Brain Teasers KEY 1. 7980 2. 3. None. Because the boat rises with the Sagai Ronald Stephen tide. Sr2 C 4. Only 6 weights of 1, 3,9, 27,81 and 243 kg

The potato paradox is a mathematical question that has surprised many people with its confusing yet reasonable answer. Try to solve it by yourself before reading the explanation. A chef has some potatoes that she is going to cook for her dish. The potatoes weigh 100kg which has 99% of water. She left it out into the sun so they will dehydrate until they are 98% of water. How much do they weigh now? Many of you might get the answer as 99 or 98. But the answer is surprisingly 50. So let’s see how we got it! Working – 99% of 100kg is water in here let’s first find how many kilograms is water 99/100 x 100 = 99kg is water So how much solid is left – 100-99= 1kg of solid left Then it said they dehydrated and now there is 98% of water. So one thing to keep in mind is to know that the 1 kg of solid won’t change at all. The only thing that will change is the water. So what is the percentage of the solid? Well it is 2% 100%-98%=2% of solid So now we know that 2% is solid and the answer of the solid in kilograms will give us 1 kg (remember it doesn’t change at all!) Let’s call the total weight ‘X’ 2% x X = 1 kg When you solve X you will get the answer as 50 kg

MATHEMATICS IS BEAUTIFUL! The well-known potato paradox has many solutions but I just showed one of them. Mathematics is all about this. It is where one problem has so many solutions to get in the same answer. People tend to hate mathematics because they think it is hard. But no one realizes the beauty of it, the beauty of it being challenging and extraordinary! So let’s understand maths more and spread the passion of it for those who are struggling with it. Ushara Fernando Sr 3C

Ancelin Sr 4

What is Zero? The first recorded zero appeared in Mesopotamia around 3 B.C. The Mayans invented it independently circa 4 A.D. It was later devised in India in the mid-fifth century, spread to Cambodia near the end of the seventh century, and into China and the Islamic countries at the end of the eighth century. Zero is a strange number and one of the greatest paradoxes of human thought. It means both everything and nothing. It is both a number and the numerical digit used to represent that numbers in numerals. It fulfills a central role in mathematics as the additive identity of the integers, real numbers and many other algebraic structures. Without zero, not just mathematics, but all branches of sciences would have struggled for clearer definitions. As a digit, 0 is used as a placeholder in place value systems. The value of Zero is well known today as it holds the highest values today. Without the invention of 0, the binary system and computer are not possible. It is a greatest invention by Indian scientists on which every calculation depends. Zero is a tiny number but it can never be ignored. Austin Joseph. Sr.1A

Ceana Madonna Sr. 3C