Q4. In a class test containing 15 question, 4 marks are given for every correct answer and (-2) marks are given for every incorrect answer. (i) Gurpreet attempts all questions but only 09 of her answers are correct. What is her total score? (ii) One of her friends gets only 5 answers correct. What will be her score?
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(i) is 24 answer and in ii is 0
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total question = 15
for correct answer = 4 marks
for incorrect answer = (-2)
1. Gurpreet attempt 15 question , 9 answers are correct
15-9=6
(9 × 4) + 6 ×(-2) = 36+(-12) = 24 gurpreet's total score
2. one friend gets only 5 answer correct
15 - 5 = 10
(5×4)+10×(-2) = 20 +(-20) = 0 her friend's score
for correct answer = 4 marks
for incorrect answer = (-2)
1. Gurpreet attempt 15 question , 9 answers are correct
15-9=6
(9 × 4) + 6 ×(-2) = 36+(-12) = 24 gurpreet's total score
2. one friend gets only 5 answer correct
15 - 5 = 10
(5×4)+10×(-2) = 20 +(-20) = 0 her friend's score
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