Question

In a test consisting of 10 questions, +5 marks are awarded for each correct answer and −1 marks are awarded for each incorrect answer.


What are the marks scored if you answered 3 questions correctly and 7 questions incorrectly?

Answer 1

Answer:

8

Step-by-step explanation:

Marks for 1 correct answer = +5

Marks for 3 correct answers = 3×5 = 15

Marks for 1 incorrect answer = -1

Marks for 7 incorrect answers = -1×7 = -7

Marks scored = 15+(-7) = 15-7 = 8

Answer 2

Step-by-step explanation:

Marks awarded for each correct answer = +5

Marks awarded for each incorrect answer = -1

Total marks for correct answer = 3 * (+5) = 15 marks

Total marks for incorrect answer = 7 * (-1) = (-7) marks

∴ Total sum of marks = 15 + (-7) = 8 marks.

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