In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer and 0 for questions that are not attempted. Ram gets 3 correct and 4 incorrect out of 7 questions he attempted. What is his final score?
7
Marks awarded for one correct answer = +5
Marks awarded for one incorrect answer = -2
Marks awarded for unattempted answer = 0
Of the 7 questions Ram has attempted, he got 3 correct answers and 4 incorrect answers.
So, the total score = 3 × (+5) + 4 × (-2)
= 15 - 8 = 7
Therefore, Ram's score is 7.