STUDY BUDDY TUITION
A student takes a 20-question test. Each correct answer gives +4 marks, and each wrong answer deducts −1 mark. The student scores 60 marks. How many questions did they get wrong?
2 months ago | [YT] | 5
STUDY BUDDY TUITION
A student takes a 20-question test. Each correct answer gives +4 marks, and each wrong answer deducts −1 mark. The student scores 60 marks. How many questions did they get wrong?
2 months ago | [YT] | 5