Question

In a unit test consisting of 10 questions, +4 marks are awarded for each correct answer and −2 marks are deducted for each incorrect answer. Each question must be attempted.
What are the marks scored if you answered 3 questions correctly and 7 questions incorrectly?

Answer 1

Answer:

Step-by-step explanation:

Mohan get 4 correct answer = 4\times5\ =20\4×5 =20

He gets 6 incorrect answer = 6\times\left(-2\ \right)=\ -126×(−2 )= −12

Total score = 20-12\ =\ 8\20−12 = 8

Thus, mohan get 8 marks in the class test.

(ii) For 5 correct answer = 5\times5\ =\ 255×5 = 25

For 5 incorrect answer = 5\times\left(-2\right)=\ -105×(−2)= −10

Total score = 25-10\ =\ 1525−10 = 15

(iii) Heena get 2 correct answer = 5\times2=\ 105×2= 10

Heena get 5 incorrect = 5\times\left(-2\right)\ =\ -105×(−2) = −10

Total score = 10\ -10\ =\ 010 −10 = 0

Thus, total score of heena is zero.

Answer 2

Answer:-2

Step-by-step explanation:

• SO,+4 MARK AWARDED FOR EACH CORRECT QUESTION,AND WRONG ANSWER COSTS A PENALTY OF -2 MARKS

• SO ACCORDINGLY, X (TAKE X AS ANY PERSON) SCORED AS FOLLOWS-:

ANSWERS CORRECT-3=4 MARKS X3=12 MARK

ANSWERS INCORRECT-7=-2 MARK X7=-14 SO

REQUIRED ANSWER=-14+12=-2

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