Question

In a test (+4) marks are given for every correct answer and (-2) for every wrong answer. You answered all the questions and scored 68 marks. 25 of your answers were correct. Hoe many the questions you attempted was wrong
Write the answer in form of integer​

Answer 1

Answer:

5,9

Step-by-step explanation:

Case 1: Asha scored =26 marks

Correct answer by Asha =9

Let incorrect answers by Asha be x

According to question, 9(4)+x(−2)=26

−2x=26−36

⇒x=5.

Incorrect answers by Asha =5

Case 2: Varun scored =2 marks

Correct answers by Varun =5

Let incorrect answers by Varun be y

According to question, we have

5(4)+y(−2)=2⇒−2y=2−20⇒y=9

Incorrect answers by Varun =9.