Question

in a class test 5 marks are given for every correct answer and minus 3 marks are given for every incorrect answers
A) Sam answered all the questions and scored 28 marks though he got 11 correct answers how many incorrect answers had he attempted​

Answer 1

Answer:

Marks given for one correct answer = 5

So, marks given for 10 correct answers

= 5 X 10 = 50

Radhika's score = 30

Marks obtained for incorrect answer

= 30- 50 = -20

Marks given for one incorrect answer

= (-2)

Therefore, number of incorrect answers

= (−20)÷(−2)=10