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348

Q:

The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 grams. Find the weight of the teacher (in kg.) 

  • 1
    55 kg
  • 2
    57 kg
  • 3
    66 kg
  • 4
    56 kg
  • Show Answer
  • Workspace

Answer : 4. "56 kg "

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