What is the Mean of New Number?If

The mean of 75 numbers is 35. If each number is increased by 5, then the mean of new numbers is

  1. 30
  2. 40
  3. 50
  4. 90
Monis Rasool Professor Asked on 25th May 2015 in Maths.
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  • 1 Answer(s)

    Answer: (b) 40
    Explanation:-

    The mean of 75 numbers = 35
    Sum of 75 numbers = 35 x 75 = 2625

    If each number is increased by 5
    then, sum of numbers = 2625 + 5 x 75 = 3000
    the average of new 75 numbers = 3000/75 = 40

    Hence, the average of new 75 numbers is 40.

    Anurag Mishra Professor Answered on 25th May 2015.
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