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
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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
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