The total marks for a subject in an examination was 200. It had three components – theory, practical and project, the percentage weightages for the first and the third being 50 and 10 respectively. One of the criteria to pass the examination was to secure at least 60%, in practical. A student secured 42 in practical. How much percentage of the total marks should be given to him as grace so that he passes the exam?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 3.
Percentage weightage of practical = 100 - (50 + 10)
⇒ 100 - 60 = 40%
Marks of practical out of total marks = 40% of 200 = 80
Marks required to pass the practical exam = 60% of 80 = 48
Obtained marks of a student = 42
Required percentage = [(48 - 42)/200] × 100
⇒ 6/2 = 3%