Boxing competitions are attended by one athlete from England, USA, Germany and Russia

Boxing competitions are attended by one athlete from England, USA, Germany and Russia. The probability that a Russian athlete will win is 0.6, English 0.1, German 0.1. What is the likelihood that an English speaking athlete will win?

To solve this problem for us, we need to perform the following actions:
The probability that at least one of them will win is 1, it is obvious that someone will win.
Then the sum of the probabilities of winning each of them is equal to 1.
Then we denote the probability of an Englishman winning for x and write down: x + 0.6 + 0.1 + 0.1 = 1.
Then x = 0.2.
As a result of the actions taken, we get the answer to the problem: the probability of an Englishman winning is 0.2 or 20%.