A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks. How many of them were correct?

A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks. How many of them were correct?

A 33

B 3

C 27

D 37

Solution

Correct Answer: Option A