In a class test 4 marks were awarded for every correct answer, 2 marks are deducted for every
incorrect answer and no marks are given for not attempting question. Ravi scored 20 marks. If he has
got 8 correct answers, how many questions has he attempted incorrectly?
Answers
Answered by
15
No of correct answers = 8
marks secured = 20
let the number of incorrect answers be X
so the marks deducted = 2× X = 2X
thus,
20-8 = 2X
12 = 2X
X = 12/2
X = 6 answer!!!
Answered by
9
Answer:
6
Step-by-step explanation:
marks given for every correct qnswer is 4
no.of questuon correct =8
total marks=8×4=32
he scored 20 marks
therefore,32-20=12
numbers of marks he lost is 12
no.of question incorrect =12÷2=6
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