Question

In a test, a student gets a score of +4 for every correct answer and −2 for every incorrect answer.
Jim attempted all the questions and his final score was 30. If he answered 10 questions correctly, how many questions did he answer incorrectly?

please answer fast

Answer 1

Answer:

So, Rohit did 16 incorrect answers and in total he attempted (25 + 16) = 41 questions.

Answer 2

Answer:

5

Step-by-step explanation:

So here, we know that +4 is given for correct answer and -2 for wrong answer. Given that he has answered 10 questions correctly.

Since, +4 is given for correct answer, the marks he gets would be 10 x 4 = 40.

But his marks are only 30. So we can say he has answered some questions incorrectly and lost his marks. He has lost 40-30 = 10 marks.

We know that he loses 2 marks for one wrong answer. So,

no. of wrong answers = 10/2 = 5 wrong answers.

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