Question : In an examination of 7 papers of 100 marks each, there were 3 Mathematics papers, 2 English papers, and 2 Hindi papers. D gets average marks of 45, 55, and 60 in Mathematics, English, and Hindi, respectively. What are the average marks per paper?
Option 1: 56.5
Option 2: 52.1
Option 3: 55.6
Option 4: 54.1
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Correct Answer: 52.1
Solution :
Number of Mathematics papers = 3
Average marks of D in Mathematics = 45
⇒ Total marks in Maths = 45 × 3 = 135
Number of English papers = 2
Average marks of D in English = 55
⇒ Total marks in English = 110
Number of Hindi papers = 2
Average marks of D in Hindi = 60
⇒ Total marks in Hindi = 120
Total marks secured by D = 135 + 110 + 120 = 365
Total number of papers = 7
Average marks = $\frac{365}{7}$ = 52.1
Hence, the correct answer is 52.1.
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