IN A CLASS TEST CONTAINING 15 QUESTIONS , 4 MARKS ARE GIVEN FOR EVERY CORRECT ANSWER AND (- 2) MARKS ARE GIVEN FOR EVERY INCORRECT ANSWER. (1) GURPEET ATTEMPTED ALL QUESTIONS BUT ONLY 9 OF HER ANSWERS ARE CORRECT. WHAT IS HER TOTAL SCORE?
Answers
Answered by
15
Total no of questions are 15
Max possible marks = 15 x 4 = 60
No of correct answers = 9
Marks for correct answers = 9 x 4 = 36
No of wrong answers = 6
Marks for wrong answers = 6 x (-2) = -12
Total marks
= Marks for correct answers + Marks for wrong answers
= 36 - 12 = 24
Marks scored by Gurpreet = 24 / 60
Max possible marks = 15 x 4 = 60
No of correct answers = 9
Marks for correct answers = 9 x 4 = 36
No of wrong answers = 6
Marks for wrong answers = 6 x (-2) = -12
Total marks
= Marks for correct answers + Marks for wrong answers
= 36 - 12 = 24
Marks scored by Gurpreet = 24 / 60
Answered by
6
total marks= 15×4=60
correct answer=4×9=36
marks he/she gets=36-{15-9(-2)}=36-12=24
correct answer=4×9=36
marks he/she gets=36-{15-9(-2)}=36-12=24
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