In a test, (+5) marks are given for every correct answer and (-3) marks for every wrong
answer. Sohan answered all the questions and scored 70 marks. He answered 20 questions
correctly. How many questions were incorrect?
a. 10
b. 40
c. 30
Answers
Answered by
2
Answer: 10
Step-by-step explanation:
Total questions answered correctly = 20
Total score for the correct answers =20*5
=100
His score is 70 and correct answer score is 100.
Therefore, we have to subtract 70 from 100
=100-70
=30
Marks subtracted for every wrong answer =-3
=3*10
=30
10 answers were incorrect.
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