Question

pic: Maths assignment
Page No. :
question. In a class test coin Containing lo
question, 5 marks are awarded for every
correct corret answere and -2 for incorrect
answer and o for question not attempted.
a) Mohen gets for correct and six incorret
answer. what is his score?
b) Reshme gets five correct answer and
five incorret answer. What is hex score?
c) Heena gets two comet answer and
five incorrect answer out of seven question
She attempts. What What is her score?​

Answer 1

In a class test containing 10 questions, 5 marks are awarded for every correct answer and (−2) for each wrong and 0 for not attempted questions. We will just forget unattempted questions as it will give her 0  marks

So let us say for any student who gave x right questions and y wrong questions then total marks is given as

 5x+(−2)y i.e

5x−2y  total marks.

1) Mohan gets 4 correct and 6 incorrect so total score 5×4−2×6  i.e 8marks

2)Reshma gets 5 correct anf 5 incorrect do total marks scored is equal to 

5×5−2×5 i.e 15marks

3)Heena gets 2 correct and 5 incorrect. She attempts only 7 questions so for the remaining 3 questions she will score zero marks.

So total marks scored by Heena is 5×2−5×2+0  i.e 0marks

Hope this helps you

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