Question

n a class test containing 10 questions ,5 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and 0 for questions not attempted. (i) Mohan gets 4 correct and 6 incorrect answers.What is his score ? (ii) Reshma gets 5 correct and 5 incorrect answers. What is her score ? (iii)Heena gets 2 correct and 5 incorrect answers out of 7 questions she attempts.What is her score ?

Answer 1

$\huge\red{Question ↓}$

In a class test containing 10 questions , 5 marks are awarded for every correct answer and (—2) marks are awarded for every incorrect answer and 0 for questions not attempted .

(1) Mohan gets four correct and six incorrect answers . What is his score ?

(2) Reshma gets five correct answers and five incorrect answers , what is her score ?

(3) Heena gets two correct and five incorrect answers out of seven questions she attemps . What is her score ?

$\huge\pink{ANSWER ↓}$

Right answer → 5x marks

Wrong answer → (—2y) marks

Not attempted questions → 0 marks

Total marks → 5 + (—2)

______________________________________________

(1) Let's start to find the Mohan score :-

Mohan Correct Answer $\rightarrow$ 4

Right answer score → 5

Mohan right answer score→ 4

=> Right answer score × Mohan right answer score

=> 5 × 4

=> 20

Mohan Wrong Answer $\longrightarrow$ —6

Wrong Answer score → —2

Mohan wrong answer score → — 6

=> Wrong answer score × Mohan wrong answer score

=> —2 × — 6

=> —12

Mohan total score → 20 + (—12)

→ 20 — 12

→ 8 score

Mohan total score is 8 .

______________________________________________

(2) Let's start to find the Reshma score :-

Reshma Wrong Answer $\rightarrow$—5

Right answer score$\huge\green{→}$ 5

Reshma right answer score $\huge\purple{→}$ 5

=> Right answer score × Reshma right answer score

=> 5 × 5

=> 25

Reshma Wrong Answer $\rightarrow$—5

Wrong Answer Score $\huge\pink{→}$ —2

Reshma wrong answer score $\huge\blue{→}$ —5

$\huge\blue{→}$ —2 × (— 5 )

$\huge\pink{→}$ — 10

Reshma Total Score → 25 + (—10)

→ 25 — 10

→ 15 score

Reshma total score is 15 .

______________________________________________

(3) Let's start to find the Heena Score :-

Heena Correct Answer $\longrightarrow$ 2

Right answer score$\huge\green{→}$ 5

Heena right answer score $\huge\purple{→}$ 2

=> Right answer score × Heena right answer score

=> 5 × 2

=> 10

Heena Wrong Answer $\rightarrow$—5

Wrong Answer Score $\huge\pink{→}$ —2

Heena wrong answer score $\huge\blue{→}$ —5

$\huge\blue{→}$ —2 × (— 5 )

$\huge\pink{→}$ — 10

Reshma Total Score → 10 + (—10)

→ 10 — 10

→ 0 score

Heena total score is 0 .

______________________________________________

Answer 2

Step-by-step explanation:

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In a class test containing ...

MATHS

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (-2) marks are awarded for every incorrect answer and 0 for questions not attempted.

(i) Mohan gets four correct and six incorrect answers. What is his score

(ii) Reshma gets five correct answers and five incorrect answers, what is her score

(iii) Heena gets two correct answers and five incorrect answers out of seven questions she attempts. What is her score

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ANSWER

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (−2) for each wrong and 0 for not attempted questions. We will just forget unattempted questions as it will give her 0 marks

So let us say for any student who gave x right questions and y wrong questions then total marks is given as 5x+(−2)y i.e

5x−2y total marks.

1) Mohan gets 4 correct and 6 incorrect so total score 5×4−2×6 i.e 8marks

2)Reshma gets 5 correct anf 5 incorrect do total marks scored is equal to

5×5−2×5 i.e 15marks

3)Heena gets 2 correct and 5 incorrect. She attempts only 7 questions so for the remaining 3 questions she will score zero marks.

So total marks scored by Heena is 5×2−5×2+0 i.e 0marks.

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