Question

I need the answer and explanation please
100 points for the
Answer

Answer 1

$\huge\bf\underline{\underline{Given:}}$

Marks for correct answer = +3

Marks for incorrect answer = -2

Marks for unattempted question = 0

Radhika' score = 20

Number of correct answers = 12

$\huge\bf\underline{\underline{To\:Find:}}$

Number of Incorrect answers

$\huge\bf\underline{\underline{Solution:}}$

Total marks obtained for correct answers

= 12(3)

= 36

Let the number of incorrect answers be x.

So total marks obtained for incorrect answers

= -2x

Radhika scored 20 marks.

So according to the question,

36 + (-2x) = 20

-2x = -16

$\boxed{\sf{\red{x=8}}}$

Therefore,Radhika attempted 8 questions incorrectly.

_____________________________

@ItsMysteriousGirl

Answer 2

Answer:

Step-by-step explanation:

given

Marks for correct answer = +3

Marks for incorrect answer = -2

Marks for unattempted question = 0

Radhika' score = 20

Number of correct answers = 12

Number of Incorrect answers

Total marks obtained for correct answers

= 12(3)

= 36

Let the number of incorrect answers be x.

So total marks obtained for incorrect answers

= -2x

Radhika scored 20 marks.

So according to the question,

36 + (-2x) = 20

-2x = -16

Therefore,Radhika attempted 8 questions incorrectly.

hope it helps mark me in brainlist