Question

6.
In an examination paper, containing 30 questions, 5 marks are awarded for every correct answer
and (-3) marks for every incorrect answer. Find the score of each of the following students:
(1) Sunil gets 24 correct out of 30 questions,
(ii) Anil attempts all 30 questions and gets five incorrect.​

Answer 1

Answer:

Sunil get 24 correct and each correct ans carry 5 marks then

Step-by-step explanation:

Total mark=24×5=120

Total mark=24×5=120and also -3 for each wrong answer then

Total mark=24×5=120and also -3 for each wrong answer thentotal mark =6×(-3)= -18

Total mark=24×5=120and also -3 for each wrong answer thentotal mark =6×(-3)= -18 total score=120-18=102

Total mark=24×5=120and also -3 for each wrong answer thentotal mark =6×(-3)= -18 total score=120-18=102Hence score of sunil is 102 mark.

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Answer 2

Answer:

(I) sunil get 24 correct out of 30 questions,

5 marks are given for correct so,

5×24=120 marks

he wrote six incorrect

therefore, 6×-3=-18

120+-18=102 marks

(ii) Anil attempts all 30 questions and gets five incorrect

anil wrote 25 correct and 5 incorrect

therefore, 25×5+5×-3

= 125+-15

=110 marks

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