there are 90 multiple choice question in a test a candidate gets 2 mark each every correct answer and for every wrong answer 1 mark is deducted from the total score of correct answer if a candidate scored 60 marks in the test About the author Natalia
Answer: [tex]\huge\mathsf{\color{green}{\underline {\underline{Answer}}}}[/tex] Suppose the no. of correctly answered questions be ‘x’, then no. of wrongly answer questions = 90-x. It is given that for every correct answer 2 mrks are answered. No. of marks scored for correct answers:- 2x And it is given that for every wrongly answered questions ‘1’ mark is deducted. No. of marks to be deducted from the score = = (90x – x) × 1 = 90 – x Total score = 2x-(90-x) = 2x – 90 + x = 3x – 90 But it is given that total score is 60. [tex]3x – 90 = 60 \\ 3x = 60 + 90 \\ 3x = 150 \\ x = \frac{150}{3} = 50[/tex] No. of questions answered Crctly = x = 50. Reply
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Answer:
[tex]\huge\mathsf{\color{green}{\underline {\underline{Answer}}}}[/tex]
Suppose the no. of correctly answered questions be ‘x’, then no. of wrongly answer questions = 90-x.
It is given that for every correct answer 2 mrks are answered.
No. of marks scored for correct answers:- 2x
And it is given that for every wrongly answered questions ‘1’ mark is deducted.
No. of marks to be deducted from the score =
= (90x – x) × 1 = 90 – x
Total score = 2x-(90-x) = 2x – 90 + x = 3x – 90
But it is given that total score is 60.
[tex]3x – 90 = 60 \\ 3x = 60 + 90 \\ 3x = 150 \\ x = \frac{150}{3} = 50[/tex]
No. of questions answered Crctly = x = 50.