In a class test containing 15 questions, 4 marks are given for every correct answer and $ (-2) $ marks are given for every incorrect answer.
(i)Gurpreet attempts all questions but only 9 of her answers are correct. What is her total score? (ii) One of her friends gets only 5 answers correct. What will be her score?


Given :

Total number of questions $= 15$

Marks given for every correct answer $= 4$

Marks given for every incorrect answer $= -2$

To find :

We have to find the total score of Gurpreet and her friend.

Solution :

(i) Correct answers by Gurpreet $= 9$

Incorrect answers by Gurpreet $= 15-9=6$

Marks given for correct answers $= 4 \times 9 = 36$

Marks given for incorrect answers $= 6 \times (-2) = -12$

Total score of Gurpreet $= 36+(-12) = 36-12=24$.

(ii) Correct answers by her friend $= 5$

Marks given for correct answers $= 5 \times 4 = 20$

Total score of her friend $= 20$ 

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Updated on: 10-Oct-2022

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