In a class test (+4)marks are given for a correct answer and -2 for every incorrect answer a student scored 60 marks and attempted 20 questions correct. Find how many questions did he answer incorrectly
Answers
Answered by
4
Answer:
20x 4=80
80-60=20
20/2=10
therefore the student got 10questons wrong
pls mark me as brainliest
Answered by
3
Answer:
10
Step-by-step explanation:
if he attempted 20
he got 80
but he got 60
so (80-60)=20 mark are incorrect
for each incorrect answer -2
than 20/2=10
mark me as brainalist
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