(8) In a class test (+3) marks are given for every
correct answer and (-2) marks are given for
every incorrect answer and no marks for not
attempting any question.
(1) Ram scored 20 marks. If he has got 12
correct answers, how many questions
has he attempted incorrectly?
(2)Mohan scores - 5 marks in the test though he
has written 7 correct answers. How many
questions has he attempted incorrectly?
Answers
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Step-by-step explanation:
- marks given for correct ans is +3
- marks given for incorrect ans is -2
- a) marks scored by ram is 20
- no of correct ans attempted is 12
- =12*3=36
- =36-20=16
- =16/2=8
- thus he attempted 8 questions incorrectly
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