In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and 0 for questions not attempted.
1. Mohan gets 4 correct and 6 incorrect answers. what is his score?
2. Reshma gets 5 correct answers and 5 incorrect answers, what is her score?
3. Heena gets two correct and five incorrect answer out of seven questions she attempts. what is her score?