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405

Q:

If the average marks of three batches of 30, 50 and 70 students is 55, 70 and 70 respectively, then the average marks of all the students is:

  • 1
    67
  • 2
    66.50
  • 3
    69
  • 4
    68.75
  • Show Answer
  • Workspace

Answer : 1. "67"

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