In a class test containing 15 questions, 4 marks are given for every correct answer and (–2) marks are given for every incorrect answer.One of her friends Hema answers only 5 questions correct. What will be her total score?
Answers
Answered by
6
Hi ,
Total questions = 15
number of correctly
answered questions be ' 5 ',
then number of wrongly answer
questions = 15 - 5 = 10
It is given that for every correct
answer 4 marks are awarded .
Number of marks scored correct
answers 5 × 4 = 20
And it is given that for every wrongly
answered questions ( -2 ) marks is
deducted.
Number marks to be deducted from
the score = 10 × ( -2 ) = -20
Total score = 20 - 20
= 0
Therefore ,
Total score of Hema = 0
I hope this helps you.
: )
Total questions = 15
number of correctly
answered questions be ' 5 ',
then number of wrongly answer
questions = 15 - 5 = 10
It is given that for every correct
answer 4 marks are awarded .
Number of marks scored correct
answers 5 × 4 = 20
And it is given that for every wrongly
answered questions ( -2 ) marks is
deducted.
Number marks to be deducted from
the score = 10 × ( -2 ) = -20
Total score = 20 - 20
= 0
Therefore ,
Total score of Hema = 0
I hope this helps you.
: )
Answered by
3
As Hema has answered only 5 questions, she has answered ( total number of questions - 5 ) wrong questions.
Total number of wrong answers given by Hema = 15 - 5
Total number of wrong answers given by Hema = 10
So,
Total number of questions : 15
Total number of correct answers given by Hema : 5
Total number of wrong answers given by Hema : 10
Marks for each correct answer : 4
Marks deducting for each wrong answer : - 2
Total number of marks scored by Hema on answering 5 questions ( correct ) : 5 × 4 = 20
Total number of marks deducted on answering 10 questions ( wrong ) : 10 × ( - 2 ) = - 20
Total marks = marks obtained + marks deducted
Total marks = 20 - 20
Total marks = 0
Therefore, total marks obtained by Hema is 0.
Total number of wrong answers given by Hema = 15 - 5
Total number of wrong answers given by Hema = 10
So,
Total number of questions : 15
Total number of correct answers given by Hema : 5
Total number of wrong answers given by Hema : 10
Marks for each correct answer : 4
Marks deducting for each wrong answer : - 2
Total number of marks scored by Hema on answering 5 questions ( correct ) : 5 × 4 = 20
Total number of marks deducted on answering 10 questions ( wrong ) : 10 × ( - 2 ) = - 20
Total marks = marks obtained + marks deducted
Total marks = 20 - 20
Total marks = 0
Therefore, total marks obtained by Hema is 0.
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