Question

In a test ,(+10) marks are given for every correct answer and(-4) marks are given for every incorrect answer.Seema answered all the questions and scored 180 marks though she got 20 correct answers.How many incorrect answers had she attempted?

Answer 1

total 20 ans are right means 200 marks
200-180=20
20÷4=5
ans=5
please send correct if it is wrong

Answer 2

Answer-

Seema scores 180 marks in which 20 are correct, therefore, 10 marks are given to correct answers,

So, 20×10=200.

200-180=20, 20are incorrect and(-4) are given to incorrect answer.

So, 20×(-4) =-80.

Total incorrect answer are she attempted are= 200-80=120.