This seems to be an extremely easy task. Anyone who knows the basic rules for performing mathematical operations knows that first you perform powers, then you calculate operations in brackets, then multiplication and division, and finally addition and subtraction. Looking at this action, you don’t have to be a genius to figure out which action is performed first.
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Online brawl over the outcome of the action
KJ Chetman was once a user of the X platform (formerly Twitter), when he published a short post on his profile: You may not believe it, but the result of this action is 5!”, he unleashed a great storm. Within minutes, the first comments full of indignation and criticism appeared under his post. Everyone tried to explain to him what a big mistake he made in the calculations and the correct result is 120. According to the basic rules, we first perform multiplication, so:
230 – 220 x 0.5 =?
230 – 120 = 120
The calculation is trivial. No wonder users wanted to explain to the author of the post that he was wrong. The truth is that neither the author of the post nor all those who claimed that the result was 120 were wrong. How is this possible?
How is it possible for an action to have two correct outcomes?
Most Internet users assumed that the result was 5, without taking into account the sign right after it, i.e. “!”. In mathematics, it is not an exclamation point, but a factorial sign. Not everyone remembers this phrase, and those who do do not necessarily know how to calculate such tasks. Just multiply the given number by natural numbers, i.e. 5! = 1 x 2 x 3 x 4 x 5, and this gives nothing else than 120. Therefore, neither KJ Chetman nor the users who decided to calculate the action and gave the result 120 were wrong. Mathematics is quite a complicated field of science, but we cannot do without it. It is necessary in almost every area of life. Regularly solved tests, puzzles and activities consolidate knowledge, but also support logical thinking. They are perfect for people of all ages.
Source: Gazeta
Bruce is a talented author and journalist with a passion for entertainment . He currently works as a writer at the 247 News Agency, where he has established himself as a respected voice in the industry.
