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The average marks of nine students in a group is 63. Three of them scored 78, 69 and 48 marks. What are the average marks of remaining six students?
  • a)
    63.5 
  • b)
    64  
  • c)
    63        
  • d)
    62.5
  • e)
    None of these
Correct answer is option 'E'. Can you explain this answer?
Verified Answer
The average marks of nine students in a group is 63. Three of them sco...
The total marks of nine students = 9 x 63 = 567
Sum of the marks of three students = 78 + 69 + 48 = 195
Therefore, the sum of marks of the remaining six students= 567 – 195 = 372
Average marks of remaining six students = 372/6 = 62. Ans.e is correct.
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Most Upvoted Answer
The average marks of nine students in a group is 63. Three of them sco...
Sum of nine students = 63×9 =567 - three of scoring marks . 567 - 78 - 69 -48 = 567 - 195 . 567- 195 = 372 sum of six students is 372 marks then average = 372 ÷6 = 62 .Average marks of six students is 62 .
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Community Answer
The average marks of nine students in a group is 63. Three of them sco...
The total marks of nine students = 9 X 63 = 567
Sum of the marks of three students = 78 + 69 + 48 = 195
Therefore, the sum of marks of the remaining six students= 567 – 195 = 372
Average marks of remaining six students = 372/6 = 62. Ans.
CORRECT OPTION IS (E).

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