In an olympiad exam containing 50 questions, a student gets 2 marks For each correct answer and -1 mark for each wrong answer. If he attends 30 questions correctly and 20 questions wrongly. Find the mark scored by him. *
a) 50
b) 30
c) 20
d) 40
Answers
Answered by
0
Answer:
Point number d) 40 is score by him
Step-by-step explanation:
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Answered by
0
Answer:
may be 40
Step-by-step explanation:
for each correct student get 2 marks
he attends 30 questions correctly that means
30×2=60
on the other hand if student will give wrong answer then 1 mark will deducted for each wrong
he attends 20 questions wrong that means
20 ×1=20
Now the marks scored by him is 60 - 20 =40
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