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The mean of six observations is 42. Five observations are 35, 39, 41, 46 and 50. What is the sixth observation?
  1. 41
  2. 39
  3. 37
  4. None of these
Explanation

Mean of 6 observations = 42

Total of 6 = 42 x 6 = 252

Sum of 5 given observations:

35 + 39 + 41 + 46 + 50 = 211

Sixth observation = 252 - 211 = 41


Last verified on 20-10-2026

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