Math, asked by mayankrawat49, 12 hours ago

In a class test 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) Reshma gets 6 correct answers and 4 incorrect answers. What is her

score?

(ii) Heena gets two correct and four incorrect answers out of seven questions

she attempts.

Answers

Answered by sambalpoonia6

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Answered by MrImpeccable

1) Marks scored by Reshma

We are given that,

⇒ Marks awarded for correct answer = +5

So,

⇒ Marks awarded for 6 correct answers = +5 × 6

⇒ Marks awarded for 6 correct answers = +30

And,

⇒ Marks awarded for incorrect answer = -2

So,

⇒ Marks awarded for 4 incorrect answers = -2 × 4

⇒ Marks awarded for 4 incorrect answers = -8

Hence,

⇒ Total marks = +30 + (-8)

⇒ Total marks = +22

Hence, total marks scored by Reshma is 22.

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2) Marks scored by Heena

We are given that,

⇒ Marks awarded for correct answer = +5

So,

⇒ Marks awarded for 2 correct answers = +5 × 2

⇒ Marks awarded for 2 correct answers = +10

And,

⇒ Marks awarded for incorrect answer = -2

So,

⇒ Marks awarded for 5 incorrect answers = -2 × 5

⇒ Marks awarded for 5 incorrect answers = -10

Hence,

⇒ Total marks = +10 + (-1)

⇒ Total marks = 0

Hence, total marks scored by Heena is 0.

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