Question

in a test + 5 marks are given for every correct answer 10 marks are given everything correct answer Jay all Answer all the questions and scored zero marks do he got 4 correct answer how many incorrect answers they had attempted​

Answer 1

Answer:

Step-by-step explanation:

Marks given for one correct answer = 5

So, marks given for 10 correct answers  

= 5 X 10 = 50

Jay'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