Question

in a test 4 marks are given for every correct answer and 2 marks are given for every wrong answer find the number of incorrect answer for each of the following (a) vansh scored 32 marks and he answers 12 questions correctly (b) Ajay scored only 8 marks and he answers 8 questions correctly​

Answer 1

Answer:

6,9

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.

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