Question

In an examination paper containing 30 questions, 5 marks are awarded for every correct answer and (-3) marks are awarded for every incorrect answer and 0 marks are awarded questions not attempted. Find the individual score in each case if: (0) Sunil gets twenty four correct and six incorrect answers. (ii) Ridhima attempts all questions and gets five incorrect answers​

Answer 1

Step-by-step explanation:

let correct answer be x

let incorrect answer be y

for Sunil

5×24+(-3)×6= 120-18=102 marks Sunil obtain from 150marks

for ridhima

correct no. of questions are 30-5

30-5(5) +(-3)5= 110 marks ridhima obtain from 150 marks

Answer 2

Step-by-step explanation:

First of all

Total question=30

total marks of test 30×5=150

In first case

Sunil gets correct =24

marks awarded for every correct answer=5 =24×5=120

he got incorrect=6

marks for every incorrect ques=(-3) =6×(-3)=(-18)

his total score =120+(-18)

=120-18=102

his score=102/150

second case

ridhima done attempted all =30

she got incorrect=5

she got correct =30-5=25=25×5=125

she got incorrect=5=5×(-3)=(-15)

her total score=125+(-15)

=125-15

=110/150

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