In 100 item test 6 questions did not answer. The number of the correct answer is 4 more than 4 times the mistakes. How many correct answers get?
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hey..
The total number of questions = 100
No.of questions attempted = 100 - 6 = 94
No.of wrong answers = x
No.of correct answers = 4x + 4
4x + 4 + x = 94
5x = 94 - 4
5x = 90
x = 90/5
x = 18
No.of correct answers = 4x + 4
= 4(18) + 4
= 72 + 4
= 76
The total number of questions = 100
No.of questions attempted = 100 - 6 = 94
No.of wrong answers = x
No.of correct answers = 4x + 4
4x + 4 + x = 94
5x = 94 - 4
5x = 90
x = 90/5
x = 18
No.of correct answers = 4x + 4
= 4(18) + 4
= 72 + 4
= 76
Answered by
0
Answer:
Step-by-step explanation:
Let the no of questions get wronged be n
According to question
No of ques correct=4n+4
6+4n+4+n=100
5n+10=100
Devide the eq by 5
n=100-10/5
n=90/5
n=18
So no of ques correct=4*18+4
72+4
76(ans)
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