Problems on Numbers Mcqs

MCQ: The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is :___________?

  1. 20
  2. 30
  3. 40
  4. None of these

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Problems on Numbers Mcqs

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MCQ: The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is :___________?

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