Question

There are 20 questions in a quiz. Each correct answer scores 7 points, each wrong answer scores -4 points. Eric took the quiz and scored 100 points. How many questions did he left blank?.

Answer 1

1 question

Explanation:

There are 20 questions in a quiz. Each correct answer scores 7 points, each wrong answer scores -4 points.

Total number of correct answers = 20 Questions × 7 points = 140 points

Total number of wrong answer = -4 × 20 questions = -80 points

We are told that:

Eric took the quiz and scored 100 points.

Therefore, the number of questions he left blank is 1 question