Answer :
John scored a 90% on his test by correctly answering 18 out of 20 questions
John needs to score 80% on his test to qualify for the job. To find out if he qualifies, we need to calculate the percentage of questions he answered correctly. John got 18 out of 20 questions right. To find his percentage correct, we divide the number of questions he got right by the total number of questions and then multiply by 100 to convert it into a percentage.
Percentage Correct = (Number of Correct Answers / Total Questions) * 100 = (18 / 20) * 100 = 90%
Since John scored 90%, which is higher than the required 80%, he does qualify for the job.
