Question

(a) In a test, +3 marks are given for every correct answer and -1 mark are given for every incorrect answer. sona attempted all the questions
and scored +20 though she got 10 correct answers.
1.how many incorrect answers she attempted?
2.how many questions were given in the test?​

Answer 1

Answer:

10 correct

10 incorrect

Answer 2

Answer:

a) 10 incorrect

b) 20 questions

Step-by-step explanation:

Total marks sona scored = 20

Toral marks awarded for correct answer = +3

Total answer sona attempted correct = 10

Total marks sona get for correct answer = +30

Therefore, total marks sona get for wrong answer = Total marks - Marks for correct answers

=>20-30=-10

a) Ans) Sona attempted 10 answer wrong

Total questions in test =

Number of correct answer sona attemped + Number of wrong answer sona attempted

=>10+10 = 20

b) Ans) There were 20 questions on test.

***PLEASE MARK ME BRAINLIST AS I HAVE NOT COPIED ANYTHING FROM GOOGLE TYPE ALL THE STATEMENTS BY MY OWN. PLEASE!!!