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Question

The average of first 123 odd natural numbers, is:

The correct answer is

123

The formula for average of first n odd natural numbers is:
Average = n (because the odd numbers are in AP with common difference 2)
So, average of first 123 odd numbers = 123

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Important Questions from Average

  1. Find the mean marks of the following distribution.
    Marks obtainedNo. of students
    255
    306
    353
    401
  2. The average of first 169 even numbers is
  3. The average weight (in kg) of a family of five members whose weights are 40 kg, 49 kg, 56 kg, 74 kg and 35 kg is:
  4. The average of first 152 odd natural numbers, is:
  5. The average runs scored by a batsman in 23 matches is 40. In the next 10 matches, the batsman scored an average of 16 runs. Find his average runs scored (rounded off to two decimals) in all the 33 matches.

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