In a test +3 marks are given for every correct ans and -1 marks are given for every incorrect
ans and no marks are provided for not attempting the question. Find
a) What is total marks obtained by a student if she got 10 answers correct and two
incorrect.
b) If one student scored +20 marks and she got 10 answers correct after attempting all the
questions, then how many answers did she get wrong?
Answers
Answered by
0
Answer:
a) answer is 28 marks
b) answer is that she got 10 questions wrong
Answered by
0
Answer:
a) 10*3 - 2
30 - 2
28
She obtained 28 marks
b) 20 = 10*3 - x
20 - 30 = -x
-10 = -x
x = 10
She got 10 answers wrong
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