Question

18) The probability of guessing a correct answer to a certain question is x/12. If
the probability of not guessing a correct answer to this question is 2/3.Then find
the value of x.​

Answer 1

Step-by-step explanation:

Probability of guessing the correct answer to a certain test questions =x/12

So, probability of not guessing the correct answer to a certain test questions =1−x/12

But, 1−x/12 =2/3

⇒x/12 =1−2/3 ⇒x=4.