Probability of guessing a correct answer is x/2, if probability of not guesding the correct answer is 4/5, find the value of x? Share with your friends Share 0 Shruti Tyagi answered this Dear student, We know that,Probabilty of getting event+Probabilty of not getting event=1∴Probabilty of guessing correct answer+Probabilty of not guessing correct answer=1⇒x2+45=1⇒x2=1-45⇒x2=5-45⇒x2=15⇒x=25∴Thus the value of x is 25 Regards -1 View Full Answer
