Question

In a class test containing 20 questions four marks are awarded for every correct answer one mark is

deducted for every incorrect answer and zero is given for questions not attempted answer the

following questions

(a) Rohit gets four correct and six incorrect answers, what is his total score?

(b) Aarushi gets five correct and five incorrect answers, what is her total score?​

Answer 1

Solution :

The marking system of this class test is as follows -

There are 20 questions in this test.

For every correct answer , 4 marks are awarded and for every incorrect answer , 1 mark is deducted .

0 marks are awarded for not attempting a question .

[ A ]

Rohit gets four correct and six incorrect answers, what is his total score?

Here , for giving four correct answer , he gets :

=> 4 × 4 .

=> 16 marks .

Now, he gave 6 incorrect answers.

Marks Lost -

=> 6 marks .

Questions Unattempted - 10

Marks Lost - 0 marks .

So , his total is 10 marks out of 80 .

____________________

[ B ]

Aarushi gets five correct and five incorrect answers, what is her total score?

Here , for giving four correct answer , she gets :

=> 5 × 4 .

=> 20 marks .

Now, she gave 5 incorrect answers.

Marks Lost -

=> 5 marks .

Questions Unattempted - 10

Marks Lost - 0 marks .

So , her total is 15 marks out of 80 .

____________________

Answer 2

Questions

In a class test containing 20question ,5marks are awarded for every correct answer and (-3) marks for every incorrect answer and 0 for questions not attempted.

(I) Bhanu gets 12 correct and 6 incorrect answers, and she doesn't attempt 2question. What is her score?

(ii) Naresh gets 10correct answers and 10incorrect answers . What is his score ?

(iii) Shalini gets 5 correct and 9 incorrect answers out of the 14 questions that she attempted .What is her score?

Answer

(1) Correct question = 12×5 = 60

Incorrect answers = 6× (-3) = -18

Scores of Bhanu = 60+ (-18) = 42marks

(ii) and (iii) in pic

I hope it helps u