Question

In a test, +3. mariks are given for everry correct answer and I marity are given for every incorrect answer and scored 20 Marks, though she got to correct answers. How many incorrect answers have the attempted?​

Answer 1

Step-by-step explanation:

Here, we are given positive marks for every correct answer and negative marks for every incorrect answer i.e. for the correct answer =+3 and for every incorrect answer =−2 mark. So, the total marks for correct answer = marks for correct answer × number of correct answers.