In a class test containing 15 questions 4 marks are given for every
correct answer and (-1) marks are given for every incorrect answer.
i) Gokul attempts all questions but only 6 of his answers are correct.
What is his total score?
ii) Neena gets 12 of her answers correct. What will be her score?
Answers
Given : In a class test containing 15 questions
4 marks are given for every correct answer
(-1) marks are given for every incorrect answer.
To Find :
i) Gokul attempts all questions but only 6 of his answers are correct.
What is his total score
ii) Neena gets 12 of her answers correct. What will be her score
Solution:
Gokul attempts all questions = 15
correct. answers = 6
Incorrect answers = 15 - 6 = 9
Marks for correct answers = 6 x 4 = 24
Marks for incorrect answers = 9 x (-1)= -9
his total score =24 - 9 = 15
Neena gets 12 of her answers correct.
Assume she also attempted all
Incorrect answers = 15 - 12 = 3
Marks for correct answers = 12 x 4 = 48
Marks for incorrect answers = 3 x (-1)= -3
her total score =48 - 3 = 45
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