Question

In a test, +4 marks are given for every correct answer and –1 mark are given for every incorrect answer. i) Ravi attempted all the questions and scored +30 marks though he got 10 correct answers. How many incorrect answers has she attempted? ii) Sameera scored -12 marks. She got 16 incorrect answers. How many correct answers has she attempted?

please explain it​

Answer 1

Answer:

i) 10 ii) 1

Step-by-step explanation:

Ravi scored 40 for the 10 correct ans So, he scored -(40-30)=10 incorrect ans

Sareema scored -16 points So,She scored(4÷4)= 1 correct ans

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