In a class test containing questions, marks are awarded for every correct answer and marks are awarded for every incorrect answer and for questions not attempted. Heena gets two correct and five incorrect answers out of seven questions she attempts. What is her score?
Find the required value.
Since it is given that, marks are awarded for every correct answer and marks are awarded for every incorrect answer and for questions not attempted. and Heena got correct answers and incorrect answers.
So, the total marks got by Heena for correct answers are given by:
And, the total marks got by Heena for correct answers are given by: .
And, the total marks got by Heena for unattempted answers are given by: .
So, the score of Heena is given by: .
Hence, the score of Heena is marks.