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      Question

      Sonali applied for a job of Science teacher in a school.

      In the test for job, she scored 8 in Physics, 8 in Chemistry, 6 in Biology, and 6.5 in the interview. For calculating the final score, weightage of 2, 3, 3, and 4 were assigned to Physics, Chemistry, Biology and interview, respectively. What is the weighted average score of Sonali?
      A 8.4 Correct Answer Incorrect Answer
      B 7.2 Correct Answer Incorrect Answer
      C 7 Correct Answer Incorrect Answer
      D 21 Correct Answer Incorrect Answer

      Solution

      ATQ, Weighted average = (2 ├Ч 8 + 3 ├Ч 8 + 3 ├Ч 6 + 4 ├Ч 6.5)/(2 + 3 + 3 + 4) = (16 + 24 + 18 + 26)/(12)┬а = 84/12 = 7

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