In a class test, 5 marks are awarded for every correct answer, (-2) marks are given for every incorrect answer and no marks are awarded for questions not attempted. Sahil scored 42 marks. If he answered 10 questions correctly, how many questions did he answer incorrectly?
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Answer :
4 answers he did incorrectly
Step-by-step explanation:
Sahil answer the numbers of questions correctly - 10
Marks awarded for every correct answer - 5
So , 10 × 5 = 50 marks for the correct answer .
Sahil total marks for the correct answers - 50
sahil scored marks in exam - 42
50 - 42 = 8
Marks for evey incorrect answer = (-2)
so , 8 ÷ (-2) = -4
Now , Remove the minus sign from the answee - 4
4 Questions he did incorrectly .
Hope you understand .
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