in a class test 5 marks are given for each correct answer and -2 for each incorrect answer. aaryav answered all the questions and score 30 mrks thought he got 10 correct answer. find the number of questions aaryav answered incorrectly.
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Answered by
0
Answer:
4 answers arrav answered inccorent
Answered by
1
Answer:
10
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
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