Question

in a class test (+3) marks are given for every correct answer and (-2) marks are given for every incorrect answer nand no marks for not attempting any questions
radhika scored 20 marks if she got 12 correct answer,how many question has she attempt incorrectly?​

Answer 1

Answer:

Radhika scored 8 incorrect answers.

Step-by-step explanation:

Given:-

 3 marks are for correct answer

Therefore,

Radhika scored 12×3=36 marks  as he gave 12 correct answers

But,

Final score of Radhika is 20.

therefore,

She has scored  16 negative marks.

 As, there is 2 negative marks for each incorrect answer

i.e(-2) for each incorrect answer

  therefore,

She scored  (16/2)=8 incorrect answers.

Answer 2

Step-by-step explanation:

she attempted 8 questions incorrectly