14. In a class test containing 15 questions, 4 marks were given for each correct answer and (-2) marks were given for each wrong answer. (a) Mithun attempted all questions but only 9 of his answers were correct. What was his score? (b) One of his friends attempted all but only 5 questions were correct. What was his score?​

Respuesta :

Answer:

Mithun's Score: 24

Friend's Score: 0

Step-by-step explanation:

Mithun's Score:

9 correct answers (each worth 4 marks)

6 incorrect answers (each worth -2 points)

(9 x 4) + (-2 x 6) = 24

Friend's Score:

5 correct answers (each worth 4 points)

10 incorrect answers (each worth -2 points)

(5 x 4) + (-2 x 10) = 0